Hi Sparky,
TVDB V3 works correctly under 4.4.7, but I'm still getting the original failure with TVDB V4
2021-11-06 11:31:01|FATAL| TV Rename 4.4.7 logging started on Microsoft Windows NT 6.1.7601 Service Pack 1, 64 Bit OS, 64 Bit Process 4.0.30319.42000 Interactive with args:
2021-11-06 11:31:01|INFO| Copyright (C) 2021 TV Rename
2021-11-06 11:31:01|INFO| This program comes with ABSOLUTELY NO WARRANTY; This is free software, and you are welcome to redistribute it under certain conditions
2021-11-06 11:31:01|WARN| Updated path for Assembly: C:\Program Files (x86)\TVRename\x64\CefSharp.Core.Runtime.dll
2021-11-06 11:31:01|INFO| Updated path for BrowserSubprocess: C:\Program Files (x86)\TVRename\x64\CefSharp.BrowserSubprocess.exe
2021-11-06 11:31:01|INFO| Updated path for LocalesDirPath: C:\Program Files (x86)\TVRename\x64\locales
2021-11-06 11:31:01|INFO| Updated path for ResourcesDirPath: C:\Program Files (x86)\TVRename\x64
2021-11-06 11:31:01|INFO| Dependencies all found
2021-11-06 11:31:01|INFO| Splash Screen Updated with: Filling Shows
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Updating WTW
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Write Upcoming
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Write Recent
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Setting Notifications
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Creating Monitors
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Starting Monitor
2021-11-06 11:31:02|INFO| Splash Screen Updated with: Running Auto-scan
2021-11-06 11:31:04|INFO| *******************************
2021-11-06 11:31:04|INFO| Starting Recent TV and Movies Scan for all shows and all movies...
2021-11-06 11:31:04|INFO| TV Rename is about to be busy doing Scan Recent since 6/11/2021 11:31:04 AM
2021-11-06 11:31:05|INFO| Doing downloads in the foreground...
2021-11-06 11:31:05|INFO| *******************************
2021-11-06 11:31:05|INFO| Starting Background Download...
2021-11-06 11:31:05|INFO| Status on screen updated: Validating TheTVDB cache
2021-11-06 11:31:05|INFO| Status on screen updated: Updates list from TVDB
2021-11-06 11:31:05|INFO| Status on screen updated: TheTVDB Login
2021-11-06 11:31:05|INFO| Acquire a TheTVDB token...
2021-11-06 11:31:05|WARN| Exception caught on attempt 1 of 3 to get
https://api4.thetvdb.com/v4/login - will retry after delay 00:00:02: The request was aborted: Could not create SSL/TLS secure channel.
2021-11-06 11:31:07|WARN| Exception caught on attempt 2 of 3 to get
https://api4.thetvdb.com/v4/login - will retry after delay 00:00:02: The request was aborted: Could not create SSL/TLS secure channel.
2021-11-06 11:31:09|WARN| Exception caught on attempt 3 of 3 to get
https://api4.thetvdb.com/v4/login - cancelling: The request was aborted: Could not create SSL/TLS secure channel.
2021-11-06 11:31:09|INFO| Status on screen updated: Could not connect to TVDB
2021-11-06 11:31:09|WARN| Error obtaining token from TVDB WebException SecureChannelFailure obtained. The request was aborted: Could not create SSL/TLS secure channel. with no response
2021-11-06 11:31:11|INFO| BG Download is busy - try again in 10 seconds
2021-11-06 11:31:12|WARN| WebException SecureChannelFailure obtained. The request was aborted: Could not create SSL/TLS secure channel. with no response
2021-11-06 11:31:14|WARN| Scan stopped as updates failed
2021-11-06 11:31:14|INFO| TV Rename free again (busy since 6/11/2021 11:31:04 AM)
2021-11-06 11:31:21|INFO| *******************************
2021-11-06 11:31:21|INFO| Starting Background Download...
2021-11-06 11:31:21|INFO| Status on screen updated: Validating TheTVDB cache
2021-11-06 11:31:21|INFO| Status on screen updated: Updates list from TVDB
2021-11-06 11:31:21|INFO| Status on screen updated: TheTVDB Login
2021-11-06 11:31:21|INFO| Acquire a TheTVDB token...
2021-11-06 11:31:21|WARN| Exception caught on attempt 1 of 3 to get
https://api4.thetvdb.com/v4/login - will retry after delay 00:00:02: The request was aborted: Could not create SSL/TLS secure channel.
2021-11-06 11:31:24|WARN| Exception caught on attempt 2 of 3 to get
https://api4.thetvdb.com/v4/login - will retry after delay 00:00:02: The request was aborted: Could not create SSL/TLS secure channel.