Windows Media Server keeps crashing

The logs show the TV “Tizen (TV 2019)” on 192.168.20.26 streaming 04 Three Times A Lady.mp3 up to 17:13 when it stopped.

A connection from the TV to the server remained in placed and was refreshed every 20 seconds up to 17:28:14

What logs show at this time is that the local network interface was no longer active

Aug 21, 2022 17:28:15.765 [25480] DEBUG - Network change.
Aug 21, 2022 17:28:15.765 [25480] DEBUG - NetworkInterface: Notified of network changed (force=0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - Detected primary interface: 192.168.20.13
Aug 21, 2022 17:28:15.836 [25480] DEBUG - Network interfaces:
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Dispatch network change after two second delay.
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Dispatch network change after two second delay.
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Dispatch network change after two second delay.
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Dispatch network change after two second delay.
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Dispatch network change after two second delay.
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Got notification of changed network (first change: 0)
Aug 21, 2022 17:28:15.836 [25480] DEBUG - NetworkService: Dispatch network change after two second delay.
Aug 21, 2022 17:28:15.849 [25480] DEBUG - PublicAddressManager: Obtaining public address and mapping port.
Aug 21, 2022 17:28:15.849 [35452] DEBUG - PublicAddressManager: Obtaining public IP.
Aug 21, 2022 17:28:15.849 [35452] DEBUG - [HCl#9c] HTTP requesting GET http://plex.tv/pms/:/ip
Aug 21, 2022 17:28:15.852 [33888] WARN - [HttpClient/HCl#9c] HTTP error requesting GET http://plex.tv/pms/:/ip (6, Couldn't resolve host name) (Could not resolve host: plex.tv)
Aug 21, 2022 17:28:15.852 [35452] ERROR - PublicAddressManager: Unable to get public IP adddress from myPlex (httpCode=-6): 
Aug 21, 2022 17:28:15.853 [35452] DEBUG - MyPlex: mapping state set to 'Mapped - Not Published'.
Aug 21, 2022 17:28:15.862 [35452] DEBUG - MyPlex: Updating device connections (from timer: 0)
Aug 21, 2022 17:28:15.863 [35452] DEBUG - [HCl#9d] HTTP requesting PUT https://plex.tv/devices/1056c718496ae7132b71cc24f6dd178e50a240a5?httpsEnabled=1&httpsRequired=0&dnsRebindingProtection=0&natLoopbackSupported=0&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx
Aug 21, 2022 17:28:15.864 [33888] WARN - [HttpClient/HCl#9d] HTTP error requesting PUT https://plex.tv/devices/1056c718496ae7132b71cc24f6dd178e50a240a5?httpsEnabled=1&httpsRequired=0&dnsRebindingProtection=0&natLoopbackSupported=0&X-Plex-Token=xxxxxxxxxxxxxxxxxxxx (6, Couldn't resolve host name) (Could not resolve host: plex.tv)
Aug 21, 2022 17:28:15.865 [35452] WARN - MyPlex: Updating device connections failed, retrying in 10 seconds.

In fact these consecutive log lines suggest your server went to sleep ! / hibernated

Aug 21, 2022 17:28:15.865 [35452] WARN - MyPlex: Updating device connections failed, retrying in 10 seconds.
Aug 21, 2022 18:00:26.977 [27108] DEBUG - Network change for advertiser.

Please disable all power saving options on the PC and also on the network card

Also - you do still have a double NAT

Aug 21, 2022 18:00:35.549 [21256] DEBUG - PublicAddressManager: Got public IP from http://plex.tv: 203.211.xxx.xxx

Aug 21, 2022 18:00:38.738 [21256] DEBUG - PublicAddressManager: got WAN IP 100.65.xxx.xxx from router
Aug 21, 2022 18:00:38.738 [21256] WARN - PublicAddressManager: WAN IP on router does not match public IP from plex.tv

And please run on latest 64-bit release - which is now 1.28.2.6106 and is available from
Preview: Plex Media Server for Windows 64-bit version - Plex Media Server / Desktops & Laptops - Plex Forum