Remote access stopped working; may need cert reset?

Server Version#: 1.43.1.10611-1e34174b1
Player Version#: 4.159.0

Hello,
I recently changed my network configuration and now cannot find my server in the Plex hosted version (https://app.plex.tv/desktop/), while it appears and works fine in the bundled version (http://192.168.1.47:32400/web).

What I changed:
Set my ISP modem/router to bridge mode, going into a Ubiquiti EdgeRouter-X, which feeds ethernet to my Netgear Readynas RN-212, with static IP).

What works:

What does not work:

  • Plex server not found when accessing via public IP (even from within my LAN)
  • Plex server and libraries not found when accessing https://app.plex.tv/desktop/

I have followed all the steps in the Remote Access Troubleshooting guide (https://support.plex.tv/articles/200931138-troubleshooting-remote-access/).

My remote access shows green constantly, with matching public IP to my router IP.

I have manually specified port 32400, forwarded it in Edgerouter, and when using a port checking tool, it is open.

I have also tried enabling dnsmasq in the Edgerouter, and adding “rebind-domain-ok=/plex.direct/” to the DNS forwarding rules.

From my NAS which hosts Plex, if I run nslookup plex.direct, I get back:

Server: 9.9.9.9
Address 1: 9.9.9.9 dns9.quad9.net
Name: plex.direct
Address 1: 0.0.0.0

However, after looking through the most recent Plex Media Server.log, I found these errors:

Apr 20, 2026 11:34:08.830 [2773418864] ERROR - CERT: Error acquiring new certificate: Failed to upload CSR: 429, <?xml version="1.0" encoding="UTF-8"?>
<errors>
  <error code="1003" message="API rate limit exceeded" status="429"/>
</errors>
Apr 20, 2026 11:34:16.568 [2771309424] WARN - NAT: PMP, got an error: Not Supported by gateway.
Apr 20, 2026 11:34:16.569 [2824573808] WARN - [HttpClient/HCl#62] HTTP error requesting GET https://97-118-xxx-xxx.{masked-data}.plex.direct:32400/identity (7, Couldn't connect to server) (Failed to connect to 97-118-xxx-xxx.{masked-data}.plex.direct port 32400 after 0 ms: Couldn't connect to server)

The first error would suggest that my certificate is expired and cannot be renewed. I checked the PMS Cache folder, it is owned by admin and has 775 permissions. I don’t see any cert-v2.p12 file in Cache.

Could an admin/mod please check on the status of my cert and if needed, renew it? @OttoKerner

As for the 2nd error, I haven’t found much info on it, so any clarification would be appreciated.

And the 3rd error, about failing to connect to plex.direct, would suggest that I am potentially having issues with DNS rebinding protection; But if I am able to ping and nslookup plex.direct, would DNS rebinding actually be at fault?

Also, when I call https://plex.tv/api/resources?, I get back this for my server:

<Device name="PLEX" product="Plex Media Server" productVersion="1.43.1.10611-1e34174b1" platform="Linux" platformVersion="ReadyNAS OS 6.10.9" device="ReadyNAS 212" clientIdentifier="{masked-data}" createdAt="1776380222" lastSeenAt="1776640319" provides="server" owned="1" accessToken="{masked-data}" searchEnabled="true" publicAddress="97.118.xxx.xxx" httpsRequired="0" synced="0" relay="1" dnsRebindingProtection="0" natLoopbackSupported="0" publicAddressMatches="1" presence="1">
<Connection protocol="http" address="192.168.1.47" port="32400" uri="http://192.168.1.47:32400" local="1"/>
<Connection protocol="http" address="97.118.xxx.xxx" port="32400" uri="http://97.118.xxx.xxx:32400" local="0"/>
</Device>

I see that dnsRebindingProtection=“0” (false). So does this, along with my nslookup test indicate that I am having a DNS rebinding issue, or something else?

Any help or suggestions that anyone can provide would be greatly appreciated! Have been troubleshooting this for a few days now…

Thank you,
Scott

It does look like the cert got stuck generating. It has been reset and looks like new one completed process. You might need to restart server.

@BigWheel That did the trick, thanks very much for the speedy response!

Can you reset my cert? Please and thank you!

@Obie_C Your server got a new cert a couple days ago and looks fine. Do you have errors in your server logs?

have you rebooted everything? router/server/etc?

My remote access won’t stay enabled for more than a few mins. I’ve rebooted everything.