Websites re-directing to other sites ..

[nitin]

Problem Reported:

Websites re-directs to some other sites, specially when browsing google.com it gives error as below:

"500 Error – Website is temporarily unavailable. The server is temporarily unable to service your request due to maintenance downtimes.Please try again later".


Solution:
There ae many forums or blogs discussed on this issue and in many cases the problem was with rootkits/virus infection which was causing this re-direction.

But , in our case we have not found any infection,suspicious files when checked with all the known prestigious virus,rootkit removal/monitoring tools. The customer was using BSNL's Broadband internet connection.

The problem was fixed by adding "Google’s Public DNS" IP.

From LAN connection settings, we didn't changed the "Preferred DNS Server IP, but just changed the "Alternate DNS Server IP" to 8.8.8.8 as we didn't get ping response to IP 4.4.4.4 from all the problematic systems.

Incase you come across any such issue please do not jump to this solution directly, but first please check for virus/rootkit infection and then try to apply this solution.

This magical fix was found from the below link with a detailed explanation.

http://www.ampercent.com/solve-500-erro ... blem/6280/