Core FTP

When connecting to licensed CoreFTP Server new users are unable to authenticate.
Pre-existing users are connecting without issue, but any new user returns the following error.

FTP connection error - Invalid username or password reported by server
Can't establish connection --> <server>.com:22 @ Fri May 04 15:41:24 2018 (10038-30015)

Have attempted to validate with multiple users.

Using standard password and connecting with CoreFTP LE.

Core FTP Server 1.2 build 589.1

You may be editing a duplicate config.dat file. "run as admin" at all times.

Am using "Run as Admin" during the sessions where I am creating the users.

Checked the config.dat file in the options path and it is getting updated with the new users. Moved it to a new location to make sure there wasn't some other odd thing happening with it, and it is still not allowing new users to authenticate.

Finally found the issue.

Ran a netstat -anb command and found that there were hundreds of TCP connections stuck in a CLOSE-WAIT status from the coresrvr.exe. When this process was ended, the sessions were released and the newly created users were able to properly log in.

it might have something to do with the port exhaustion problem that was fixed in build 589.42