I am facing weird problem that some customer can't login to their account.When customer try to login ,it redirect to same page without any error.it happens user who visited the site before. And for new user doesn't have any issues.if i clear cookie then everything is fine.These problem started when i shifted to new server which support HHVM.I am not able to find from where it redirects.After login it is going _loginPostRedirect action method and then redirecting to account/indexAction but it is not reaching to the this account/indexAction .Before this action some where it redirect to the login page again.Any one can help me to find from where it redirect or what is the issue with cookie?.
Thanks, Shabeer