Auth Proxy will not be able to accept connections on port 389 on all interfaces

I’m unable to get DUO proxy to start due to the follow error - not able to find much info on this.

2019-09-09T13:32:24-0400 [duoauthproxy.lib.log#info] The Auth Proxy was able to ping Duo at ■■■■■■■■■■■■■■■■■■■■■■■■■■■■ with a latency of 328.000068665 milliseconds.
2019-09-09T13:32:24-0400 [duoauthproxy.lib.log#info] The time drift between the Auth Proxy host and Duo is within acceptable limits.
2019-09-09T13:32:24-0400 [duoauthproxy.lib.log#info] The Auth Proxy was able to validate the provided API credentials.
2019-09-09T13:32:24-0400 [duoauthproxy.lib.log#error] The Auth Proxy will not be able to accept connections on port 389 on all interfaces. 389 is already in use by another application: lsass.exe running with PID: 520.

Any help is appreciated!

Thanks

Some other application is already listening on port 389. lsass.exe services Windows logons… did you install the Duo proxy on your domain controller? The domain controller is already listening on 389/636. Move Duo to another server or change the port in the Duo authproxy.cfg [ldap_server_auto] like port=388 and point your application to that port.

Thanks for the assist. Moving to another server resolved that issue.

Glad you resolved it!