unable to connect remote PC in same domain...


we are the same network and same domain.....but unable to ping to destination computer....when i unjoined from domain to workgroup then its pinging correctly...but when i joined in domain its not been connected . the highlight is from the destination computer able to connect my source computer

I checked these parameters

1.Firewall is disabled

2. checked local firewall , that is also disabled

3.checked registry , in that also configured well

can anyone tell me what might be a problem ?????