No connection thru PlexApp - but Portforwarding works perfectly?!

Plex Media Server Remote Access
1

Hello everybody!

Since a few days I can’t reach my server neither through the Plex web app, nor through the Android app via the internet.
Since I have a DS-Lite connection, I set up a DynDns port forwarding and it worked fine for over a year.
According to the Plex server, I am fully available on the internet and port 32400 is also open.
Interestingly, I can reach the server directly via port 32400 and reach it via my DynDns access.
Where is the error?

Server Version#: 1.25.0.5246
Player Version#:4.66.1

2

Does the error also happen when you access over IPv6? If that works, then there’s something with the DynDNS relay that throws Plex off.

3

Thanks for the idea so far.
I’ll check this out and get back to you.
Hope that will do.

4

Cannot connect via IP6 due to the DSLite-connection and the portforwarding.
Apparently, PLEX only accepts “secure connections”, which is not possible with port forwarding.
I just wonder why Teamviewer & Co. can do this, but PLEX unfortunately cannot.

5

Hi there,
as requested have uploaded the actual Server Logs.

Plex Media Server Logs_2021-12-08_18-02-48.zip (4.0 MB)

6

looks like you have bad formatting in allowed networks pref. if just trying to allow a single IP just enter that one.

looks like your server computer’s local ip is 10.10.178.50. What is 10.10.178.47 ?

looks like it it failing DNS rebinding test. Can you change DNS?

Dec 08, 2021 17:43:50.214 [9296] ERROR - [EventSourceClient/pubsub] getaddrinfo(10-10-178-50.abcdefghijklmnopqrstuvwxyz012345.plex.direct) failed: 11001
Dec 08, 2021 17:43:50.214 [8692] ERROR - getaddrinfo(10-10-178-50.abcdefghijklmnopqrstuvwxyz012345.plex.direct) failed: 11001
7

Hi everybody!

Sometimes things get done by leaving it alone!

For no reason PLEX works since latest App-Update perfectly again.
So thanks for all your efforts!

Marc