| Troubleshooting
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These are just some of the things that can happen that causes loss of your connection to TBO, requiring diagnosis and correction. Like any diagnostic situation, it is important for the person attempting to fix the problem to have on hand all of the relevant information relating to the failure. If you find yourself in this situation, be as precise and complete as possible - vague statements that something "does not work" may be a starting point, but it falls well short of successful diagnosis and correction. Almost always, the quality of technical support anyone can offer is dependant on the quality of information you are able to offer. The material presented in this document describes some of the most common problems that occur with internet connected computers. It is offered as a first aid kit for the less serious problems - those that can be fixed relatively easily. Of course, "relatively easily" is always dependant on the expertise and experience of the person attempting to fix the problem. Hopefully the information offered here will help bridge the gap between lack of experience and successfully repairing your own system to a fully functional state. If you run into problems you cannot solve
by yourself, please contact us for technical assistance.
Select the description of your problem which best describes your situation. The dialer complains that the modem is
malfunctioning or it is not responding. Turn the modem off, wait 10 seconds, then try again - is the result the
same? Some modems will "hang" and fail to respond after a power
spike or brown-out; if you are familiar with the modem lights, a hung
modem will usually appear to have a different lighting array to one that
is functioning normally. Powering the modem off, waiting a little, then
powering it back on will normally fix such problems. Internal modems can get hung too, but there is no way to power them off without turning the computer off as well. Shut down your operating system, power down and - again - wait 10 seconds, then turn it back on. If you still cannot solve the problem, then it is time to consult the experts. The problem may be the modem itself has malfunctioned and needs to be repaired, all the cables you tried may have been faulty, or the serial port on your computer is not operational. A hardware technician should be able to narrow down the exact problem fairly quickly.
The first thing to check are the connections - that the jack connector on the modem is in the correct connection (some modems have an additional connector usually labelled Phone which are for handsets), and that the lead is firmly plugged into the correct phone outlet on the wall or skirting board. After the obvious potential causes have been eliminated, it is time to check the phone line itself. Unplug the modem and plug in a standard handset. Lift the receiver. If there is a dial tone, then reconnect the modem and try again. Sometimes including "ATX3" or lower values of 'X' will solve this problem because the modem is told not to wait for a dial tone and dial regardless. If this still does not solve the problem, then the modem is probably malfunctioning and needs to be repaired or replaced. If there is no dial tone on the handset, then the problem is with the
telephone line. If you cannot determine what the problem is, then call
your phone company for assistance. The first thing to do if this problem arises is to determine if there really is no answer or if your modem simply is not connecting. Almost all modems have a speaker, and this should be enabled. Assuming it is not already enabled, you do so by sending the command ATM1L3 to the modem. If you are running Windows 95/98 or Windows NT, go to Control Panel / Modems highlight the modem you're having problems with, click Properties then open the Connection tab and click on the Advanced button. In the Extra settings field, enter ATM1L3. If for some reason you cannot enable the modem's speakers, or the speaker is too quiet to hear (some internals in particular are almost impossible to hear), then an alternative method is to dial the number with a normal telephone and see if a modem answers the line. Either way, if the line is answered by a modem and you still cannot connect, then your modem has a connection problem. Connection problems may arise from a modem incompatibility; however, these are rare these days with modems manufactured within the last 4-5 years as most of them are based on standard chipsets. Another cause of this problem is a congested telephone exchange; the engaged tone in such a situation is slightly different from a normal one, and some modems do not detect it and will not return BUSY. If this is the case, see the next section.
Peak periods at TBO are 3pm to 9pm weekdays, and 4pm to midnight on weekends. The possibility of all of our lines being busy outside of those time periods is almost zero. If you find you are getting engaged tones at any time, and redialling still results in busy tones, then it is most likely a telephone exchange problem. Exchange busy occurs because the phone exchange becomes congested. Fortunately, this is rare, but it still can and does occur. Call the tecnical assistance number for your telephone company (assuming you can get through) - they should be able to assist.
Passwords are also case sensitive. Since passwords are not displayed (characters are substituted by '*'), this can be difficult to check. Make sure that your CAPSLOCK key is not on - this is the number one cause of password failures. Be careful to type it correctly. Asking Windows to save your password is one way to avoid this problem. However, there are security implications in doing so - anyone with physical access to your computer can then use your dialup connection without needing to know the password, and it is also possible to "steal" saved passwords. You will have to decide for yourself whether to save your password or not depending on your situation. If you think you have entered the correct username and password, and that none of the above applies to your situation, please contact our techsupport for assistance.
Telephonic equipment and facilities connected to your phone lines can affect your connection. First, make sure that Call Waiting has been disabled. Connect a handset to the line, and using your handset dial *70. This will prevent incoming calls from interfering with your connection. Next, try disconnecting any other phone equipment attached to the phone line. Some handsets are a major culprit in disrupting data communications, as it will pull current from the line every several minutes, causing the line to either hang up or become unusable. Similarly, some hands-free and cordless stations can cause problems, as can fax machines and similar equipment. If you do not experience the dropout problem after disconnecting all other telephone equipment from the line, try reconnecting them one at a time until the line dropouts start again - this should isolate the piece of equipment that is causing the problem. Many of them can be modified to prevent this from happening. If you have ruled out the above possibilities, then contact your phone company and see if your line can be examine for line quality problems. Check also for the possibility that your phone company may be carrying out network maintenance on either your exchange or ours - this type of work can be very disruptive to both voice and data communications, but usually only lasts for a few hours. The possibility also exists that your modem may be overheating or faulty. Older modems are more likely to be subject to this problem than newer equipment, but this is less likely to be the case than general problems with telephone line quality.
I connect to TBO, but I can't get anywhere! See next question. My browser/ICQ/irc/mud/mail program cannot connect to a remote site. The first thing to determine in this situation is whether the problem is a general one that affects all sites or whether the problem is with the remote server you are attempting to connect to. Try connecting to other sites to see if they can be contacted. If the problem is with a specific site, then try again later. Servers
on the internet do require maintenance periods when they will be unavailable,
so a small amount of downtime is normal. If the problem persists, call
our helpdesk to see if we can help either explain the problem or help
to resolve it. TRACEROUTE (Technical) A useful diagnostic tool that is provided with almost every internet
ready system is called traceroute, which can be used to track down problems
with network routing, or even just find out whether a server machine is
operational or not. On Microsoft Windows systems, this program is called
tracert. To use it, open a DOS or Command prompt (via Start / Programs
/ MSDOS Prompt or Command Prompt) and type tracert <name-of-server-you-are-trying-to-contact>.
tracert www.tbousa.com
If tracert does not respond at all after pressing ENTER on the command line, then you probably have a connection problem to TBO itself. If no success, then hang up, reconnect and try again. Contact our Tech Support if you continue to have problems. Traceroute may show that it can partially get to a site, but times out after a few 'hops'. This is indicative of a failed route OR a congested link somewhere in the path between your system and the remote server. If multiple attempts always stop at the same host, then it is probably a failed link. Internet backbone routers will normally adapt to this situation and route around failed paths; however, if the route stops at what is the primary gateway for the network you're attempting to reach, then the service may be unavailable until the problem with the gateway has been rectified.
When I try to connect to a remote site, the host name is invalid, cannot be found or cannot be resolved. This means that the host name you have entered or configured fails to return an IP address when the software attempts to look it up in the DNS (domain name service). To explain: DNS, or Domain Name Service, is the name given to the internet wide database that contains mappings between host and domain names, and their IP addresses. All communications on the internet utilises IP addresses only, and the DNS makes those IP addresses useable by providing the ability to use host (individual machines) and domain (network) names instead. For example, it is much easier to remember "www.tbousa.net" than it is to remember "209.126.196.115". The first thing to check is that you are actually connected to TBO! If you aren't connected anywhere, then hostname lookup failures is not only normal, but entirely expected. Failure to look up a host or domain name can arise from a number of causes. The simplest one, although most rare, is that the servers on which the master and secondary lists of hosts for a domain may be malfunctioning or down (every domain has at least two servers which will respond as "authoritative" for a domain). A small amount of downtime is usually acceptable in the overall scheme of things, since domain information can still be cached elsewhere on the internet - in other non-authoritative domain name servers - for a limited period of time. Extended downtime can result in complete domains apparently "disappearing" off the internet. Almost every ISP or network has at least two domain name servers. When you connect to TBO, your system will automatically use our domain name servers to look up host names and make queries on your behalf. All of this is usually invisible to you, except when it does not work, for whatever reason. It is possible that both of TBO'S domain servers may be down, in which case an attempt to resolve any domain or host name will fail. Fortunately, this event too, is unlikely. Failure of both TBO nameservers at the same time has not happened ever in years of operation except due to a power failure that affected the entire network (but dialing into our service did not work either). The most common cause of DNS lookup failure is a configuration problem in Windows 95 or Windows 98. This results in failure of any attempt to use host names, whether it be in a browser or any other internet software. If you find that you can ping or tracert to any site from the Command Prompt using an IP number, but you are unable to ping or tracert to any hostname, then this is probably the problem. The cause of this common mis-configuration is usually due to your system being connected to a local area network (LAN), using an ethernet card. Domain Name Service settings for ethernet cards override settings for dialup connections, and unless the DNS servers on your network are functional, host lookups will fail, even when you are connected to TBO. Another cause is that you or someone with access to your computer has configured or enabled DNS in the global TCP/IP->Dialup Adaptor item in Control Panel / Network. Windows 98 will alert you with a warning if you attempt to do so, but Windows 95 will not, which is why the problem is most common on Windows 95 systems. TCP/IP settings for the Dial-Up Adaptor will override any settings for individual dial-up networking icons. The simplest way to resolve this problem is to uninstall, then reinstall the TCP/IP networking component. It may not be enough to simply edit the properties for TCP/IP->Dialup Adaptor, as once it is configured, the settings tend to be "sticky", even when items in it are deactivated. NOTE: You will require your Windows 95/98 CD-ROM for the following procedure. To uninstall TCP/IP: Open the Start menu. To reinstall TCP/IP: Open the Start menu. Unless you need them for LAN connectivity, if they are displayed in the
"installed network components" list, remove Client for Netware
Networks, IPX/SPX-compatible protocol, and NetBEUI, by highlighting each
item in turn and clicking the Remove button. Now we need to re-create our TBO dialup icon. Double click on Make New Connection. This will launch the Dial-Up Connection
wizard that asks a few questions. With your right mouse button, click once on the newly created TBO icon.
Use country code and area code When I press the Search button, I get the message that the URL http:/// is unknown and cannot be displayed. This is a known problem that is specific to Microsoft Internet Explorer 3.01 that is delivered with some versions of Microsoft Windows 95. Unfortunately, Microsoft do not provide a fix for it any more as IE3 is no longer supported, and recommend updating to a later version of Internet Explorer (We at TBO recommend Internet Explorer 6 or Netscape Communicator 4.5 or later for full enjoyment of your web browsing experience, so this is not such a bad idea). Does this mean that your web browser has no searching capability? No. It just means that this functionality is not accessible via the browser's search button. Type in the address bar your favorite search engine, ie: www.altavista.com What does URL mean? Understanding this term is essential if you wish to browse the world wide web. URL is an acronym for Universal Resource Location, often coined as a web address of a page, program or other resource that can be accessed from your web browser. The location or address bar displayed by your browser shows the URL for the page you are viewing, and you can type in a URL that will bring up a page at that location for viewing or download. While web pages are one type of URL, they are not the only type of URL you will encounter. Most web pages start with the familiar http:// which indicates that the URL is of a type that is transferred to your computer using the HyperText Transfer Protocol, but that is only one type of many possible that are supported by most browsers. Other common URL protocols are ftp:// File Transfer Protocol, news:// Usenet News, https:// Secure HyperText Transfer Protocol and so on. The URL was invented as a way of unambiguously defining resources available on the internet. It defines not only where that resource is, but how to get it. The format of a URL is protocol://server_hostname/path_to_hostname. When I click on a link from a page, or enter a URL that a friend gave me into the location bar I get HTTP Error 404 - what does that mean? Basically, it means that the file or resource you are requesting cannot be found by the remote server. The first thing to do is to check to make sure that you have typed the URL correctly. The smallest mistypings can make a difference between success or failure. Getting 404 errors from links obtained via search engines is unfortunately common, a phenomenon known humorously as link rot, where the search engine is not updated as frequently as page locations, or pages are removed from a server but the search engine links remain until they expire in perhaps 6 months time. Sometimes a browser will report an HTTP 404 error, when a browser on a different system will bring up a resource at that address. This is particularly common with older browsers, such as Microsoft Explorer version 2 and Netscape Navigator version 2, which do not understand redirections and other new features introduced into later revisions of the Hypertext Transfer Protocol. The "file not found" error reported by these browsers is a fallback, since it does not understand what the remote site is actually asking it to do. Try loading http://www.ibm.com for example using one of these older browsers; you'll see something entirely different from those of us with up to date browsers! This is why TBO recommends strongly that you upgrade your browser software to the latest and greatest offerings. There may be some users, though, who run very old computers, where resources to run these newer programs may not be available. If you are considering upgrading, you do not have to spend megabucks on downloading it from the internet! Many internet and computer magazines, software packages and giveaway CD-ROMs from various sources (such as those supplied with modems) come with reasonably up to date browsers. Each issue of the popular PCWeek magazine is accompanied by a CD-ROM with the latest browser versions for Win32 environments. Various Linux distribution CD-ROMs come with native versions of Netscape and/or Internet Explorer for UNIX. When I open some URLs, I am asked for a name and password. What should I type? Some sites require you to "log in" before you can view them. The site may contain sensitive or privileged information, or be an adults only site. Usually you will need to provide credit card details or come to some arrangement with the owners of the site for access. When I open a site, I get HTTP 401 error - forbidden. Did I do something wrong? No. You just requested something that the server has been
forbidden to send you. Usually this is because automatic directory indexes
have been disabled (that is, remote sites are not allowed to view the
contents of a directory) when there is no default document for the directory.
This is usually a configuration error on the server, or simply that the
pages intended for the site have been removed or not yet uploaded. We can, however, describe how to access the configuration area for some of the more popular email packages. Many of these packages, particularly those made by Microsoft, are tied to dial-up networking and will attempt to connect to the internet when you start them up. If you get the option to do so, select Work Off-line when starting these programs. This will allow you to configure the program without having to do so while connected to TBO. Netscape Mail Netscape is a relatively easy package to configure, and the configuration section is within the program itself. All components of the Netscape suite may be configured by starting any of the individual components; mail & newsreader, browser or html editor. There are two sets of instructions here; which you will use depends on the version of Netscape you are running. Note that if you have Netscape Navigator version 4 or above, you may not have the mail reader component installed. You need to have installed the complete Netscape Communicator package in order to have mail facilities. For Netscape Communicator version 4 or greater: Open the Navigator (browser), Messenger (mail/news reader) or Composer
(html editor). For Netscape Navigator version 3 or below: Open the Navigator or Netscape Mail component. Microsoft Internet Mail & News Internet Mail & News is the default client supplied with all versions of Microsoft Windows 95 and NT. Windows 98 comes with Outlook Express instead (see next section). Internet Mail & News is a reasonably primitive mail and news reading client, but it does the job. Configuration for this mailer is in the system Control Panel, under an item marked Mail or Mail and Fax. Press the Start button on the task bar. Microsoft Outlook Express Outlook Express is delivered with Internet Explorer 4 (and therefore Windows 98, which comes with Internet Explorer 4) and Internet Explorer 5. The main difference between Outlook Express 4 and 5 is that version 5 has the ability to maintain multiple identities - that is, more than one person can use the program on the one system. Like Netscape Messenger, Outlook Express is a high quality and very capable mail program that works reliably. Configuration for Outlook Express is contained within the program itself. Start Outlook Express, by either clicking on the desktop or taskbar icon,
or by selecting the program from the Start menu. Microsoft Outlook Microsoft Outlook is part of the Microsoft Office package. It was published with Office95, Office97, and again as a separate package Outlook98. This is the "big brother" to the Outlook Express mailers supplied free of charge with Internet Explorer. It offers a much higher degree of integration with the other Microsoft Office family of modules, including the ability to use Microsoft Word as its integrated mail editor, with its extremely rich formatting capabilities. It also comes with many other integrated modules, including full contact list management and scheduling. Basic configuration for Microsoft Outlook is in the same location as for Internet Mail & News; that is, in the Mail item in Control Panel. However, you can also access this same area from within Outlook itself. Open Microsoft Outlook, either by selecting the appropriate icon from
your desktop or taskbar, or via Start / Programs. Eudora Pro Eudora Pro and Eudora Lite are internet mail clients which have been in existence for many years now, and are very mature products. On Windows 95, 98 and NT platforms Eudora also offers some integration with the Dial-Up Networking component, and like the Microsoft clients can connect to your mailbox automatically when the client starts up. Eudora's configuration may be accessed from within the program. Start Eudora using the desktop or taskbar icon, or start it via the Eudora
program group via the Start menu. While this list of mailers is specific to the Windows environment, the rest of this section covers problems that you may experience using mail programs running on any operating system. The mail program complains that my username and password or wrong and is unable to collect my email. Your mail username is the beginning of your email address. The password is the password you chose. (Ususally the same as your dialup connection) Both are case sensitive. Make sure that your CAPSLOCK key is not depressed, and be sure to enter your mail username in all lower case. If the password contains mixed case, then ensure that you have typed it correctly. Do NOT include the @tbousa.com part in your mail user name. Also, be sure to read the prompts in the incoming mail server configuration area correctly; the phrase mail server name in the Netscape Messenger area, for example, refers to your user name, and not the name of the mail host you wish to collect your mail from (note that this particular prompt has been modified to be less ambiguous in Netscape 4.5 and later).
When I try to collect mail, the connection is terminated with the message that the mailbox is currently locked. This occurs from time to time when you are downloading an unusually large mail item and the connection is terminated abnormally. If you encounter this, contact our Tech Support to remove the mailbox lock and make your mail available again. When I attempt to download mail, my mail program stops receiving after XX% and it can't retrieve any more. This problem is specific to older/slower computers and is indicative of a general problem in downloading to your computer. Basically, your computer cannot receive information from your modem at full speed, and loses information. The download gets stuck when your computer asks our server to resend, but the resend requests never reach the server. This problem will also affect downloading any information from the internet, including web graphics and downloading files via ftp. The long term solution to this problem is to upgrade your computer to a faster, more modern system which will have better capacity for communications. A short term solution is to reduce the speed of communications between your modem and computer: If it is set at 115200, then try 57600, if at 57600, try 38400. Baud rate may be modified from the General properties sheet of your TBO connection icon in My Computer / Dial-Up Networking, and pressing the Configure button next to the modem selector. After making this change, you will need to hang up (if you are still connected) and dial again. When I receive mail I am told I am receiving it, but my inbox still appears to be empty This problem arises when your inbox has been corrupted somehow, usually by your system being turned off or losing power while receiving mail, or because your computer has "crashed" during a mailbox operation (some of which happen automatically if you have enabled checking for mail every few minutes while connected). Microsoft supply a tool to rectify this problem, called the Inbox Repair Tool. Close down your mail reading program if it is currently open. When I try to collect my mail, the mail program says that pop.tbeeo.com cannot be found and has no DNS entry. This is another manifestation of one of the problems described above in the Communications Problems section. It means that the internet hostname lookup function is malfunctioning on your system. Refer to that section for solutions. It could also mean that you tried to access the mail server and you are not online. My friend can't send me a file by email. It is returned to him with a message that it is too large or my disk quota is exceeded. To provide a fair use of our mailbox resource, we limit the amount of mail you can receive in your mailbox to around five megabytes. This ensures that one user cannot fill our mailbox area and cause complete loss of email service to all other users. As sometimes happens on the internet, you may annoy another "internet citizen" so much (for whatever reason) that they attempt to annoy you by transmitting huge files to your mailbox - this safeguard prevents that from happening as well. While this might prevent you receiving further mail from any other user, it will have no impact on other users of our service. This is only fair. Consequently, the maximum size of any individual mail item you may receive is limited to five megabytes. Bear in mind that email was not really originally designed for transfer of files, and that it is a very inefficient way to do so. I have received a cryptic message from MAILER-DAEMON or Postmaster. What do I do with it? These messages look confusing to a new internet user, but they are actually informing you of something concerning the delivery of your email. If you have mistyped an email address, or attempted to send to a mailbox which has been closed, you will find in the message some indication of what the problem was. Look for user unknown or host unknown, for example. Sometimes mailboxes become full (see previous question) so your message cannot be delivered. Sometimes a remote mail server may be down for an extended period, so you will first get a message from our mail server that your message cannot be delivered after 4 hours of trying (don't worry, it will keep trying for some time yet so don't resend right away), and finally if the remote server either cannot or will not accept your mail after 5 days, then it will be returned to you. I keep getting messages from Postmaster with the subject DSN: Receipt of Mail. This is a notification (DSN means "Delivery Service Notification") that your message has been delivered into the destination mailbox by a mail server. This is normal, and believe it or not, it is what you requested. If you do not want to receive receipts for all mail you send, you need to turn them off. In Netscape Messenger, select the Return Receipts category under Mail & Newsgroups and reconfigure according to your wishes. Other mail programs may have similar options. While DSN notification messages can be useful in some circumstances, you can only use them as positive notification of delivery when you get a receipt in your mailbox, but you cannot assume that their absence means that the message was not delivered. A lot of mail server software does not support DSN, and many mail readers ignore the receipt request, either because they do not support it or because the user has requested them not to be sent. When I ask Outlook or Outlook express to get my mail, the modem hangs up and starts to dial again! It is possible that you have the hang up after recieving mail feature enabled simply disable it or see Connection Problems section above.
Technically, problems in this area are out of our (TBO'S) realm, but do not hesitate in calling our Tech Support for assistance. We may not be able to solve the problem for you (but sometimes we can!), but at least we might be able to offer some guidance as to what course of action you should follow to get it resolved. Certainly we will try to help you as much as we are able. When I run my browser/mail program or try to send mail, I get a window saying that there has been a General Protection Fault. An exact cause, and therefore a definite fix, is extremely difficult to diagnose in this case. Usually, this occurs because either a program or its configuration/data files have been corrupted, or because the Windows registry has become corrupted. The causes of this corruption are many, but include not shutting your system down correctly (via Start/Shutdown) or due to a power failure or system crash. Or perhaps your hard disk has developed problems; in which case sometimes the problem cannot be resolved without replacing it. General Protection Faults are not normal on a well functioning system. They may be caused by badly behaved software packages (be careful about what software you choose to install on your system!), or a problem related to hardware. Anyone who has to diagnose the problem successfully will have to become familiar with your system, and try to track down exactly how to cause it to crash, then determine why it is crashing, and finally apply a fix. Windows is not alone in experiencing this class of problem, of course. UNIX systems will complain about "segmentation violation" or "illegal instruction" traps, and so on. All computer systems are subject to malfunction from time to time, whether it be due to software or hardware, or a combination of both. Just as with health problems, they can not often be solved by the layman and require an expert to offer advice or fix the problem. We fully understand any frustration you
may feel as a result of this type of problem arising. Anyone who has used
computers for a reasonable length of time will have encountered it, so
while we may not be able to provide you with a solution to your problem,
we do fully sympathise with your situation. |