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Cannot connect remotely

Posted on 2011-02-25
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Last Modified: 2012-06-21
Hi all

This problem drives me crazy. I was asked from a client of mine to install an antivirus for him on his home computer. I connected on his pc via teamviewer and installed avast free. After he restarted his computer he could no longer connect remotely on his office via windows pptp vpn or remote desktop connection directly on his office internet ip address. We couldnt even telnet to any open port from his house to the office. We removed avast, restarted the computer and still has the same probem. He can however telnet succesfully or connect to any other computer via remote desktop on any computer apart from any computer in his office.

I have restarted the cisco router at his house and the ISP adsl modem as well as did the same in his office but still i have this problem which drives me crazy. Everything were working perfect before i install avast.
I tried to telnet directly from his cisco router at home to an open port in the office just to make sure that the problem is directly from the pc but even the router cannot telnet to any port in the office. I can telnet succesfully anywhere in the world except his office.
When i do remote desktop from his house to the office I am doing at the same time a show ip nat transalation on the cisco at the office and see that it accepts incoming 3389 request from the house internet IP and dies there.

Any suggestions please??????
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Question by:giorgosy78
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NORTON INTRUTION PREVENTION on Symantec endpoint protection

Turned it off and everything came back to normal

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