PC cannot access some websites
Dear Guys, we are having this issue: After moved to a new seat, an user's PC could not access only some domestic websites, she still could access to foreign sites, such as yahoo, facebook, gmail... Anyone can suggest a solution, please?
I tested and these are some results:
- Plug in a laptop in that PC's place, it CAN access Internet normally
- Bring that PC to other places, it CAN access Internet normally
- We checked in the Router and Switches but there is no sticky command matched with PC's MAC address
- There is no ACL involved in permit/deny traffic
- 2 users stayed here before but they COULD access Internet normally
- We scanned virus, reinstall PC but could not help
I tested and these are some results:
- Plug in a laptop in that PC's place, it CAN access Internet normally
- Bring that PC to other places, it CAN access Internet normally
- We checked in the Router and Switches but there is no sticky command matched with PC's MAC address
- There is no ACL involved in permit/deny traffic
- 2 users stayed here before but they COULD access Internet normally
- We scanned virus, reinstall PC but could not help
SOLUTION
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ASKER CERTIFIED SOLUTION
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ASKER
Hi Andreas, Yes it worked normally with other PC, laptop on the same LAN port.
Even when I brought that PC to other ports, it could access Internet normally.
We tried to created a new user profile, reinstalled OS but did not help!
Even when I brought that PC to other ports, it could access Internet normally.
We tried to created a new user profile, reinstalled OS but did not help!
SOLUTION
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ASKER
@ David: We are located in Vietnam, websites are: http://vnexpress.net/, http://dantri.com.vn/
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Do you have a proxy or web filter of some sort in place?
ASKER
problem solved after changing the PC. No any chance to test your suggestions. Thanks ALL!
ASKER
@ Abhi:
What is the output of ipconfig /all ? Nothing special
Will it makes any difference if you run ipconfig /flushdns on the PC? Nothing help, even when clear cookies, DNS flush
If not, could you clarify if you are checking this in an active directory domain infrastructure or unmanaged network? unmanaged network
Is there any proxy settings configured for the affected user? If so, is there any proxy exceptions for the INTERNAL sites been added in the browser? No any proxy