Sharing a Folder Issue

I have 4 computers and all share a folder off one of the machines.  Recently power went out for a few hours and 2 of the coimputers stopped sharing the folder and kept popping up to enter the password.  I did this to no avail.

I have gone so far as to remove all passwords and tell the networking to allow people to access the shared folder without a password.  Again it still pops up asking for a password.

Here is what I have done

Rebooted

Removed all Passwords

Made sure everything was on a private server

Used CMD Prompt to make sure the account was unlocked

Tried to share a completely different folder (same results)

Rebooted the modem

Made sure everything was updated.

Tried resetting passwords to ones I know

Checked Credentials and there was nothing there.

Any help?