I run a small hamachi minecraft server of seven people, and so far we've had linux, mac, and Windows 10 users with no issues. However, I've run into a strange issue with a new user, who runs windows 7. Before you all come after him saying he should upgrade, his pc is incapable of doing that, though perfectly capable of utilizing my server. This user can log in to logmein, but when he attempts to join either of my networks, he recieves "password rejected." No error code, just an OK dialog box. I've attempted to connect from windows 10, 8.1, and 7 VMs and found that this error only occurs on win7. I'm wondering if this is a known issue, and if so, is there a workaround or fix?