Login issues in multisite(subsite) Drupal7

Hi All,

I am facing a login issue in subsite structure in Drupal 7. The issue is when i tried to login in the site using the url like http://site.com/subsite/user than the browser starts to execute infinitely and the urls repeats itself many a times like http://site.com/subsite/subsite/subsite/subsite/../..user etc.

I can login using the login block only.

Does anyone face the same issue?

The base site login works fine.

Appreciate your help.