No Wired Internet problem
Posted on 2008-11-05
No internet with PC wired to Comcast cable modem, I've tried everything, replacing the cable modem, the NIC card, and the Ethernet cable. Plus checking all the TCP/IP settings. LSPFIX shows nothing in the right hand column and the left column had no entries that looked unfamiliar (but I am not an expert on that). I also ran LSPFIX as it was and it found 0 things to report. I also ran WinsockXPFix. And still no internet.
This PC can consistently renew its IP address and that is NOT the case in most situation where there is no internet.
IE 7 has a "no connection" diag tool which concluded it was a DNS or modem problem and now we have replaced the modem. The detailed IE 7 diag log shows that the Winsock part passed all tests and furthermore the PC could ping IP addresses BUT COULD NOT GO TO ANY WEB SITE SPELLED OUT IN CHARACTERS. I.E A DNS PROBLEM.
The TCP/IP properties have DNS set to auto like it should be and this setting was the same before and after the problem began.
Add/Remove list has no malware shown. Norton scan (maybe not full scan) and Webroot Full scan found nothing (both were done by customer before I arrived).. I took a quick look at Program Files folder and no malware leaped out at me but I did not look at it in detail. No malware symptoms are present (but then again with no internet a lot of malware activities are eliminated).
My plan is run ComboFix (a powerfuil malware remover) and if that does not fix it, I can not post the log (or any other log) to this forum as PC has no internet SO PLEASE DO NOT ASK.. IF THAT FAILS, I WILL DO A REPAIR INSTALL FROM THE WINDOWS XP CD AS THIS HAS RESTORED INTERNET IN THE TWO TIMES I USED IT FOR THIS PURPOSE when all the above activiies had failed.
CAN YOU RECOMMNED THAT I DO SOMETHING ELSE than the paragraph immediately above this noting that this is SOLELY a DNS problem.