A friend of mine has two machines, both running Windows 7, both on the same network, both in a WORKGROUP. He wants to be able to connect to a network share on machine A from machine B, and I told him it would be easy :S
Both machines have identical user names with identical passwords. When I attempt to connect to machine B from machine A using the existing user credentials, it fails to authenticate. I tried disabling the firewalls on both machines and it still failed.
When I had exhausted my networking knowledge (i.e. after a few minutes), I added a completely new user on both machines. Using the new user, everything worked fine.
So it seems there's something wrong with the existing user accounts that is confusing Windows...? After asking my friend questions, I discovered that the user accounts in question were not created from scratch on both machines. e.g. Machine A originally had "foo" as the user name and machine B had "bar". Both were renamed to "user".
Can anyone tell me how to fix or diagnose this further? My recourse is to simply create a separate "admin" account on both machines and have him use that, but it's clunky and I'd like to understand why things aren't working as is.