Hi, I am trying to fix a problem with a machine on a small office network. There are about five machines on this network, all set to DHCP and all are members of the workgroup WORKGROUP. One machine (RECPETIONIST) has some shares on it for all other machines to access. All machines except one can access the shares and files as necessary. Some other details: Actual error message is: Logon Failure: Unknown username or bad password. All machines are running Win7 Pro with updates.RECEPTIONIST has accounts on it that match all users.RECEPTIONIST has password protected sharing turned off. (Note: I have gone back and forth with this during my testing with no success).INVESTIGATOR has Network Discovery turned ON and can see RECEPTIONIST.INVESTIGATOR cannot see the shares that are available on RECEPTIONIST.I occasionally see a message that it is looking for credentials and then gives me a UN/PWD prompt from which I cannot find any machinename/username/password combination that will allow me to get to that machine.I have done extensive searching of the internet with no success. Dates are not an issue as all sync to a time server.One suggestion was to use nbtstat -r. This does not show RECPETIONIST in the list.Another suggestion included netsh interface IPV4 reset but that did not help at all.I can map the drive by IP address, but given that I am using DHCP, this is not a viable solution. Any suggestions or questions that can help me get this machine working properly on the network? I'm close to just wiping the disk and starting over again on this machine. I'm sure I have left out some critical details. Let me know what else to tell you. Thanks. Rich.