Unable to connect to remote linux server git

[Jonathan Weinraub]

I am migrating a locally hosted RHEL git server to new hardware and I had migrated the git repositories without problem, it seems.,

However, on say server1, the team would use git@server1:/opt/git/foo.git for a clone, and it works, it doesnt seem to ask for credentials or it is cached I dont know how/where.

If I now say git@server2:/opt/repos/git/foot.git (it fails sys access denied), but if i do jweinraub@server:/opt/repos/git/foo.git it works, also my putty keys are not stored within the program, but it also doesnt ask for credentials, it works.  

What am I doing wrong?  Both servers are RHEL both are the out of package git, this is driving me up a wall as I need to sunset server1 asap.

thank you