Can't access plex server within my own LAN after power outage

Plex Media Server
1

Server Version#: 1.43.0.10492
Player Version#: 9.4 build 12

Plex Server is running on DSM (Synology NAS). Been running great for years, but today after a power outage, suddenly none of Plex apps can access the server.

I did a complete re-install, actually deleting all data during the uninstall, and recreating my libraries after re-install.

Still not working. Any thoughts?

2

Restarting my NAS and now it’s saying the server is unclaimed, and when i try to claim it, nothing happens.

3

Was able to resolve this by re-installing yet again, but we’re back to the original issues of “Servername is currently unavailable”

5

NAS model?
DSM version?

  1. Make sure Plex Media Server is running.
  2. Point a private/incognito window at http://nas_ip_addr:32400/identity.
    For example, if the IP address is 10.1.2.3, use http://10.1.2.3:32400/identity

You should see one line of XML containing claimed=0 (unclaimed) or claimed=1 (claimed).

We know the server is unclaimed. This also verifies that PMS is running and responsive without requiring a login.

This typically happens when the NAS cannot communicate with servers at plex.tv.

  1. Ensure the NAS’ IP address, network mask, and default gateway are correct.
  2. Configure the NAS to use public DNS servers such as 1.1.1.1 (Cloudflare), 8.8.8.8 (Google), or 9.9.9.9 (Quad9).
  3. Stop Plex Media Server and wait 15-20 seconds for it to settle.
  4. Start Plex Media Server and wait ~2 minutes for it to fully start.
  5. From a system on the same network as the NAS, point a private/incognito browser window at http://nas_ip_address:32400/web.
    For example, if the NAS’ IP address is 10.1.2.3, use http://10.1.2.3:32400/web.
  6. Login to Plex and click the wrench icon (settings)
  7. Go to Settings → server_name → General and see if you can claim the server.

If you still cannot claim the server, manually retrieve a set of server log files and post to the thread.

  1. Stop Plex Media Server
  2. Using Synology File Station navigate to the Plex Data Folder.
  3. Right click on the Logs directory and choose Compress to Logs.zip.
  4. Download the zip file and post to the forum.
6

One additional item to check.

Ensure the NAS is synchronized with a public NTP server.

On DSM 7 (DSM 6 should be similar):

Synology Control Panel → Regional Options → Time tab

Time Setting = Synchronize with NTP server.

Pick a server from the list.

Update Now.

You should see Status = Normal.

7

yes i’ve checked that, time is synced

8

Here are teh Plex server logs

9 
Mar 18, 2026 23:09:54.351 [140224056855184] DEBUG -  * 6 ovs_eth0 (192.168.1.238) (90-09-D0-0D-90-CB) (loopback: 0)
Mar 18, 2026 23:09:54.351 [140224056855184] DEBUG -  * 7 ovs_eth1 (192.168.2.238) (90-09-D0-0D-90-CC) (loopback: 0)
...
Mar 18, 2026 23:09:54.354 [140223989193528] DEBUG - NetworkService: Browsing on interface 192.168.1.238 on broadcast address 192.168.1.255 (index: 1)
Mar 18, 2026 23:09:54.354 [140223989193528] DEBUG - NetworkService: Browsing on interface 192.168.2.238 on broadcast address 192.168.255.255 (index: 2)

Is network 192.168.2.0 in use? Plex is not picking up any devices on that network (it usually sees SSDP broadcasts from many devices, not just Plex clients).

Please verify the netmask for 192.168.2.0. It should be 255.255.255.0. It appears to be 255.255.0.0. Notice the broadcast address in the log entries above. It is 192.168.255.255, not 192.168.2.255.

If network 192.168.2.0 is not used, then disconnect the Ethernet cable from the NAS.

Then perform FAQ 31: Reset / Reclaim PMS on DSM 7 (Not Authorized - Locked Out).

11

That was the old network. I changed my home network two days ago. That LAN port no longer has anything connected to it, 192.168.1.238 is the only one in use now.

Plex was working fine after the network migration, right up until the power outage.

12

Also some interesting information, i’m able to access the Plex Server (:32400) from both my windows laptop and macbook, so there’s clearly no connectivity issues.

The issue seems specifically with the Viewers on both of my TVs.

13

I re-installed Plex Server in DSM for the 9th time, and now even the laptops are giving the currently unavailable error.

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image1504×812 63.9 KB

And what’s really interesting, is if i go to Settings, it looks like it has two instances of the same server, one it’s able to connect, and one that it’s not.

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image476×372 11.3 KB

14

Sounds like preferences.xml was updated with a new server ID and you now have 2 different servers with the same name

15

I was able to get rid of it by removing it from Authorized Devices.

Still isn’t resolving my original issue though. Server still not reachable from Plex Player.

16

You will need to re-add it to your pinned libraries.
EDIT:
May have to log out and back in on some players

17

Sharing most recent logs in hopes that it can help.

18

Logging out and back in on each player worked!

Thank you.