Do you actively use the DLNA service? If not, please disable it. Located in Server Settings > DLNA.
Do you actively use or need to have IPv6 enabled? If not, please select IPv4 only. Located in Server Settings > Network.
Can you also confirm if Relay Access is enabled? If it is enabled, please disable it and restart PMS. After PMS starts again, enable Relay Access if you would like. Located in Server Settings > Network.
One last thing, is the classic “Turn it off and on again”. Have you or could your restart the host machine and try again.
