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losing router access when a certain computer is connected

Posted on 2006-07-14
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Last Modified: 2013-11-29
In our office, we have a user that brings in her laptop.  In the past, she has been able to connect the ethernet cable to her laptop and access the internet.  Now when she comes in and connects the cable, she aquires an IP address from the Linksys router (DHCP) and then the router becomes inaccessable to everyone on the network.  As soon as she disconnects, all is back to normal.

I assigned her a static IP address on the laptop and she could get to the internet, then when I tried to open the browser a second time...not router (fro everyone).

The event log has a system error # 10021, source: DCOM.  The text is:

The launch and activation security descriptor for the COM Server application with CLSID {<CLSID>} is invalid. It contains Access Control Entries with permissions that are invalid. The requested action was therefore not performed. This security permission can be corrected using the Component Services administrative tool.

Any help would be greatly appreciated!!
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Question by:beyondt
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by:danishtahir
ID: 17112134
It seems like a hardware issue if the router becomes inaccessible. Did you try to plug it into a different port?
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by:knightrider2k2
ID: 17112271
-Check the laptop for Virus/Worm
-try connecting to a different port on the switch
If still do the same then I would suspect the laptop NIC.
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by:Shaun84
ID: 17112451
From the sounds i would say that it is a virus infection. once it connects to the router the virus is trying to upload itself using your connection i would have the laptop fully checked and maybe check one or 2 of the desktops to make sure it hasnt spread
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by:beyondt
ID: 17112755
I found the problem.  It was a program that was starting on startup.  I can't remeber the name  (Bit Tomel??) but it is supposed to be a file sharing app similar to Napster.  I removed the program and all seems to work okay.  I ran a virus scan with nothing found.

Thanks.
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by:rickhobbs
ID: 17112950
bittorrent
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