Switch to AT&T from Cox Communications: Plex server was working now it's not

Plex Media Server Remote Access
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I had Plex server working while my internet provider was Cox Communications. When I switched to AT&T U-verse, the Plex dashboard indicates no server found. I changed the Static IP address of the server to work with the new allowed range of internal IP addresses. I also manual specified the port as 32400. When that didn’t work I uninstalled Plex server and reinstalled it, making sure to update all required files. No luck… Please help.

2

I assume you’re using the modem/router provided by AT&T? Have you forwarded the port on the router?

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Yes… I realize I didn’t mention it but I cannot even access my Plex Media on my local network. Plex just doesn’t even see it.

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I saw something in another post about IPv6 being enabled by default. Try seeing if that is enabled and disable it just to see if it helps out.

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I made the change on the router. That didn’t seem to make a difference. Would I have to reboot the Plex server?

6

Eh, not sure if it would matter, but rebooting the machine it’s installed on wouldn’t hurt.

I’m not really sure what the issue would be. I know you said you can’t connect to the server from your local network, but how are you accessing the web interface? With the local IP address or with app.plex.tv?

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I have tried accessing it both ways: Locally and from Plex.TV. Both start and show the desktop but cannot find the server.

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So, http://ipaddress:32400/web doesn’t work? That’s very weird.

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I agree. Unfortunately I have to get offline now. Will check back for any further ideas tomorrow…thanks!

10

You can try this if there might have been a sign in problem. often happens if you might have signed into server with a different account.

https://support.plex.tv/articles/204281528-why-am-i-locked-out-of-server-settings-and-how-do-i-get-in/

Else you can try this to help claim a server that cannot be seen for some reason.

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So the mistake was embarrassingly simple. I had edited /etc/dhcpcd.conf to create a static IP address for the Plex server. I updated that IP address when I changed from Cox to AT&T, but forgot to change the router IP address. Cox and AT&T do not use the same range of IP addresses in their home networking scheme, so the server failed to find any network outside of the local.

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