Cant connect W7 to internet & network printer

September 19, 2010 at 17:57:15
Specs: Windows 7, 4GB
Hi!

I am using Windows 7 Ultimate in our office for awhile now and there were no problems connecting to the internet until this month. I am able to connect locally, access some shared resources but I cannot connect to the internet and also I am unable to connect to the network printer. I also cannot access the router as it keeps on looping to its login page even if I entered the correct username and password. I can access it using other computers. Other Windows 7 and XP computers on the network were able to connect without any problems. I have disabled my antivirus and windows firewall but the problem is still there. I also tried resetting winsock. I have 2 built in LAN cards but the other one is disabled.... Then what's weird is that, after office hours, when all of the computers on the network are turned off except for mine, I was able to connect to the internet.. as if some other computer is trying to prevent me from access during office hours. Our network administrator is also puzzled and said we should just reformat my pc... I suggested not just yet... please help me....


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#1
September 20, 2010 at 09:47:57
Try running Malwarebytes to see if you have an infection your AV missed, then try doing a system restore to a date before you began having problems. Third, try a different browser to see if it is your browser (try Firefox if you normally use IE). And finally, look to see if you have any unusual or unneeded browser add-ons and turn them off.

You have to be a little bit crazy to keep you from going insane.
If all else fails, read instructions.


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#2
September 20, 2010 at 11:55:38
this should be something for your local it/network boffins to look at, although the fact that you can get on the internet after hours is odd, could be an ip conflict, or maybe someone is taking a lot of bandwidth downloading, or you are been blocked for been naughty on the internet..all very strange..

i hate computers!
but cant help myself....


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#3
September 20, 2010 at 20:51:51
Thanks for your replies...
I was able to ping the router but cannot ping websites...

I'll try to run malwarebytes though. I will post the logs as soon as I'm done.. Thanks for the help...


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Related Solutions

#4
September 20, 2010 at 23:16:58
Detected 4 Infections!

Scan type: Full scan (C:\|)
Objects scanned: 276690
Time elapsed: 42 minute(s), 22 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 0
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 2

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\AppDataLow\HavingFunOnline (Adware.BHO.FL) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page (Hijack.StartPage) -> Bad: (http://flvdirect.iamwired.net/) Good: (http://www.google.com) -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Users\MIS7\AppData\Local\Xenocode\Sandbox\1.0.0.0\2010.05.04T12.40\Virtual\MODIFIED\@SYSTEM@\Hackhoundserver.exe (Trojan.Swisyn) -> Quarantined and deleted successfully.
C:\Users\MIS7\AppData\Local\Temp\Setup.exe (Trojan.Chifrax) -> Quarantined and deleted successfully.

Still having problems with connectivity... :(


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#5
September 21, 2010 at 00:35:24
you may need to run a system restore as far back as you can go, make a copy of all your files and folders, if your system restore does not fix the issue you may need to do a factory restore, however if its a company machine, get the IT dept to take a look.especially check the router see if your mac address or ip address has been blocked.
can you connect to the net outside of the office?

i hate computers!
but cant help myself....


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#6
September 23, 2010 at 17:56:44
Thanks princecorum and Fingers.... I can access the internet again without any problems. I still don't know what went wrong but I suspect it was the RPC virus which was detected by Windows defender (or maybe those that were removed by Malwarebytes). Next time, I'll do a system restore. Thank you all for your help.

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