Sonarr version (exact version): 2.0.0.4855
Mono version (if Sonarr is not running on Windows): 5.0.1.1
OS: Ubuntu Server 17.04
((Debug logs)): https://paste.ee/p/zNlMQ
Description of issue: Attempting to connect to PMS version 1.7.5.4035 fails saying invalid username and/or password. I believe this connection was working until sometime recently. It’s possible it stopped working when I updated to PMS 1.7.5.x but I am not positive exactly when it stopped working.
Edit: I should have mentioned, my Plex server is on a separate server all by itself (192.168.1.21). Sonarr, Radarr, PlexPy, Ombi, Organizr, NZBGet and NZB Hydra are all on another server together (192.168.1.22). Ombi, PlexPy, and Organizr all connect to Plex without issue, but they use tokens instead of credentials. Sonarr and Radarr fail to connect to my Plex server. The test button gives me the invalid credentials message. I can confirm the credentials are fine by visiting http://192.168.1.21:32400/ in an incognito tab in chrome and logging in without issue.