LAN Connection Issue
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Posted by dvilimek on January 14, 2008, 7:56 pm
Please log in for more thread options Hello, Having issues with my broadband LAN connection, and even my ISP has given up. I’ve recently moved from Bell Sympatico to Rogers Hi-Speed – I’ve never got my PC to work with the Rogers modem, but my fiancée’s Mac works fine with the modem. Here are the details: • PC is plugged directly into modem; there are no issues with limited on no connectivity – it says the LAN is “connected” • ISP was able to detect connection, but could not explain lack of Internet activity • ipconfig release and renew have done nothing – according to ISP, the IP address is fine (ie. It is not starting with “169.254” • TCP/IP protocol set to obtain IP and DNS server addresses automatically • I’m seeing very low packet volume received • Norton Firewall is disabled/Windows XP firewall is off as well • Network card is Broadcom 440x 10/100 Integrated Controller • Driver edition is 4.25.0.0 • OS is Windows XP Home Edition Version 2002 Service Pack 2 • Model: Dell Inspiron 6000 It is evident to me that something is blocking the connection – I’ve had this happen to me before when I would try to use broadband wired connections in various hotels. Wireless connections always worked though. My only alternative is to have the Geek Squad visit my home for $149.99 plus tax. Would like to avoid this! Many thanks, D | ||||||||||||||||
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Posted by Grinder on January 15, 2008, 10:45 am
Please log in for more thread options As a rough diagnostic, you can try replacing individual elements in the setup to see if you get an improvement: 1) Replace the operating system. Boot from a LiveCD, like Ubuntu. The default network settings for that disc should automatically get an IP address and DNS servers from your modem. 2) Replace cables. A physical inspection of your cable is probably worth making as well. 3) Replace the modem. If that works, you won't definitively know if it's a hardware fault or a configuration problem, but you'll have isolated the component. 4) Replace/add a network card. I've seen NIC cards, or onboard controllers, crap out. Maybe that's what's happening here. | ||||||||||||||||
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Posted by Calab on January 15, 2008, 12:56 pm
Please log in for more thread options > Having issues with my broadband LAN connection, and even my ISP has
> given up. I’ve recently moved from Bell Sympatico to Rogers Hi-Speed – > I’ve never got my PC to work with the Rogers modem, but my fiancée’s Mac > works fine with the modem. Here are the details: Some modems will remember a network connection even when the PC is disconnected, in this case the Mac. If you only have one IP address on your account, this could be the issue. > • ipconfig release and renew have done nothing – according to ISP, the
> IP address is fine (ie. It is not starting with “169.254” What DOES the IP address you get start with? I know that Motorola DOCSIS modems give out a 192.x.x.x IP address when they don't have connectivity. > • Norton Firewall is disabled/Windows XP firewall is off as well
This is most likely your problem. ANYTHING "Norton" installed in your PC is a recipe for disaster. What's worse is that uninstalling it ususally buggers stuff up even more! What is the gateway IP address that your PC gets? Can you ping that? | ||||||||||||||||
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Posted by kony on January 15, 2008, 1:46 pm
Please log in for more thread options On Mon, 14 Jan 2008 18:56:48 -0600, dvilimek
>
>Hello, > >Having issues with my broadband LAN connection, and even my ISP has >given up. I’ve recently moved from Bell Sympatico to Rogers Hi-Speed – >I’ve never got my PC to work with the Rogers modem, but my fiancée’s Mac >works fine with the modem. Here are the details: > >• PC is plugged directly into modem; there are no issues with limited >on no connectivity – it says the LAN is “connected” Ok, I ask a bit about this below just to clarify but basically this just means a network connection is established between the two but not much else. >• ISP was able to detect connection, but could not explain lack of
>Internet activity By connection they probably mean the modem, possibly a host connected to it (though in my experience they usually mean the modem)? >• ipconfig release and renew have done nothing – according to ISP, the
>IP address is fine (ie. It is not starting with “169.254” >• TCP/IP protocol set to obtain IP and DNS server addresses >automatically >• I’m seeing very low packet volume received >• Norton Firewall is disabled/Windows XP firewall is off as well >• Network card is Broadcom 440x 10/100 Integrated Controller >• Driver edition is 4.25.0.0 Have you otherwise been able to use this network adapter to connect to anything? I mean the broadcom ethernet one specifically not the wireless. >• OS is Windows XP Home Edition Version 2002 Service Pack 2
>• Model: Dell Inspiron 6000 > >It is evident to me that something is blocking the connection – I’ve >had this happen to me before when I would try to use broadband wired >connections in various hotels. Wireless connections always worked >though. Frankly, I would not troubleshoot this if I were you, I would buy a wifi router as it not only provides wireless access which is very desirable with a laptop, but it also provides an extra layer of security over having a windows system directly connected to the internet. Granted wifi is also a security risk in itself, but online networking tutorials can show how to mitigate that risk, and if it still seems too large a risk you could always connect the systems using ethernet and disable the wireless feature of a router. It need not be an expensive router, a basic 802.11g can be found occasionally for as cheap as free to $10-20 after a rebate. Especially having multiple systems on the premises it is a good piece of hardware to have. If you are convinced to get a router, please let us know and hold off on the following troubleshooting steps. Instead after having the router connected if you need to give your ISP the MAC address of the router, or go to a special webpage to register it (a CSR from your ISP can tell you that, even if they say they don't support 3rd party routers they should still be able to relay to you the most basic of requirements their service depends upon, instead of just telling you to insert some CD and run it which is not what you need to do with a new router installation except if it were only to uninstall some software they had already had you install). If you bought a router then after registering it with the ISP if it didn't then work, the following listed items would again be a method to resolve that issue. First, check your laptop's power management application to be sure the wired ethernet port is enabled/powered. This assumes you are connected by ethernet not USB (you are leaving out a lot of info). Next take a systematic approach to seeing where the connectivity stops... It will help a lot if you systematically reply to each of these items, directly under each item instead of a summary reply, to help us see where your connectivity issue lies. - Are you able to network with other systems can can use the internet through the modem? - Are there link lights between the (ethernet?) system and/or modem and if so are they lit indicating a connection? - If you go to a command prompt (Start Button -> Run ->
(type) "cmd", then at the command prompt type "ping
127.0.0.1", hitting enter of course, does this work? - Next at the command prompt type "ipconfig /all" What is the IP Address, subnet mask, default gateway, DHCP server and DNS server numbers? - Next at command prompt type "ping (the IP address from above)". Does this work? - Does your LAN depend on DHCP IP address assignment? If you don't know the answer is likely "yes". Is the gateway IP # in the same range as your system's IP address? Try "ping (the default gateway's IP address)" at the command prompt. Does this work? - Are you familiar with accessing the modem's HTTP interface? Typically using a web browser and accessing something like http://192.168.100.1 will do this. You can use google to research what the proper IP number is for your modem, assuming yours does have this feature. What make and model is your modem? - Can you access the modem's *webpage* as mentioned above? If so, what do the various screens state about connectivity? Consult your modem manual also if necessary, what do any LEDs on the modem show as to the connected status? - Did your ISP require you to register a MAC address when you initiated service? If so, was it the MAC address of the modem only or a system connected to it, and if a system was it the other system that does work with the modem? - The results of the above questions tend to make the rest a shot in the dark, so more feedback on those may help but at the command prompt can you get a response if you "ping yahoo.com"? If not, next try "ping 216.109.112.135". Does that result in a reply or not? That IP number is just one system resolving to the yahoo.com domain name, having it work but not yahoo.com would tend to mean a DNS server related problem. When the other system is connected to the modem and the internet is working, also go to a command prompt and do "ipconfig /all" and write down all the items asked about above, the IP Address, subnet mask, default gateway, DHCP server and DNS server numbers. All the values should be the same for both systems, except the IP address should have the last number different. For example if one were 192.168.0.4, the other should be 192.168.0.(n). Likewise these should both be in the same range as the gateway IP number which is also a 192.168.0.(n) number. Likewise with the DHCP server IP number, but the DNS IP numbers will be different, outside of your LAN. | ||||||||||||||||
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>
> Having issues with my broadband LAN connection, and even my ISP has
> given up. I’ve recently moved from Bell Sympatico to Rogers Hi-Speed –
> I’ve never got my PC to work with the Rogers modem, but my fiancée’s Mac
> works fine with the modem. Here are the details:
>
> • PC is plugged directly into modem; there are no issues with limited
> on no connectivity – it says the LAN is “connected”
> • ISP was able to detect connection, but could not explain lack of
> Internet activity
> • ipconfig release and renew have done nothing – according to ISP, the
> IP address is fine (ie. It is not starting with “169.254”
> • TCP/IP protocol set to obtain IP and DNS server addresses
> automatically
> • I’m seeing very low packet volume received
> • Norton Firewall is disabled/Windows XP firewall is off as well
> • Network card is Broadcom 440x 10/100 Integrated Controller
> • Driver edition is 4.25.0.0
> • OS is Windows XP Home Edition Version 2002 Service Pack 2
> • Model: Dell Inspiron 6000
>
> It is evident to me that something is blocking the connection – I’ve
> had this happen to me before when I would try to use broadband wired
> connections in various hotels. Wireless connections always worked
> though.
>
> My only alternative is to have the Geek Squad visit my home for $149.99
> plus tax. Would like to avoid this!