So I have Server 5.2 running on a Mac mini, running OS X 10.11.6.
I have two MacBook Pros trying to use it as a Time Machine server; the backup disk is offered to both MBPs when setting up Time Machine. I select Encrypted backups on both MBPs, and use the same credentials to connect to the disk on both, then enter encryption passwords for both.
Time Machine is set up successfully on both MBPs. They also both have SMB and AFP enabled under File Sharing.
One MBP backs up using Time Machine just fine, the other says that the backup fails because the network username and password are wrong. It suggests re-adding the backup disk. I've done this countless times, and triple-checked the credentials used on the second MBP, but I can't get the backup to work.
Any suggestions to advice? Thank you!