Plex server not available locally but remote works
Hi since Friday none of my plex devices have been able to detect my server on my local WiFi. my friend can still access it remotely though and it works on mobile data on my phone.
the server is running on a UGreen NAS, connected via ethernet to my router. Plex is in Docker being managed by Portainer. This is the firsr issue Ive had since setting up a few months ago and can't seem to solve.
Has anyone elae had this issue? Thanks for any suggestions in advance.
Here's a summary of what I've tried so far using Gemini:
Troubleshooting Steps Tried So Far:
Docker Network Configurations:
Host Mode: Set network_mode: host and removed port declarations. Container logs show healthy startup (Connection to localhost (::1) 32400 port [tcp/*] succeeded!), but port 32400 remains unreachable on the local IP.
Bridge Mode: Reverted back to bridge mode with explicit port mappings (- "32400:32400") and added ADVERTISE_IP=http://<NAS-IP>:32400/ to environment variables.
NAS / OS Settings:
Confirmed NAS IP is statically assigned on the local subnet.
Verified the UGOS Pro built-in Firewall is completely disabled.
Plex Server Settings (Configured via app.plex.tv Remote Web UI):
Confirmed Secure Connections is set to Preferred.
Set Preferred network interface explicitly to the primary physical network adapter.
Added http://<NAS-IP>:32400 under Custom server access URLs.
Confirmed client devices and laptop are on the same main Wi-Fi network.