# Plex CRITICAL (runtime: 1128)

**URL:** https://forums.plex.tv/t/plex-critical-runtime-1128/913570
**Category:** General Discussions
**Tags:** chromecast, server-truenas
**Created:** [April 17, 2025, 3:12am UTC](https://forums.plex.tv/t/plex-critical-runtime-1128/913570 "2025-04-17T03:12:56Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Novarap](https://avatars.discourse-cdn.com/v4/letter/n/bc8723/32.png) [@Novarap](https://forums.plex.tv/u/Novarap)
#### Post date: [April 17, 2025, 3:12am UTC](https://forums.plex.tv/t/plex-critical-runtime-1128/913570/1 "2025-04-17T03:12:56Z")

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Hi everybody

I was watching a movie on Plex today, casting from my android phone to chromecast. Suddenly after around 30 min the movie turned of and grey screen appered with an error saying something like “h4 not supported”, this happened every 30 minutes or so, the rest of the movie. I then check the log and found this error around the time of the crash:

2025-04-16 21:38:56,207 (7fb58b2bfb38) : CRITICAL (runtime:1128) - Exception in thread named ‘refresh\_servers’ (most recent call last):  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/runtime.py”, line 1126, in \_start\_thread  
f(\*args, \*\*kwargs)  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/System.bundle/Contents/Code/peerservice.py”, line 169, in refresh\_servers  
servers\_el = self.get\_servers\_el()  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/System.bundle/Contents/Code/peerservice.py”, line 165, in get\_servers\_el  
return XML.ElementFromURL(‘http://“my IP-address”/servers’, cacheTime = 0)  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/api/parsekit.py”, line 344, in ElementFromURL  
method=method,  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/api/networkkit.py”, line 67, in \_http\_request  
req = self.\_core.networking.http\_request(url, \*args, \*\*kwargs)  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/networking.py”, line 352, in http\_request  
return HTTPRequest(self.\_core, url, data, h, url\_cache, encoding, errors, timeout, immediate, sleep, opener, follow\_redirects, method)  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/networking.py”, line 119, in **init**  
self.load()  
File “/usr/lib/plexmediaserver/Resources/Plug-ins-d301f511a/Framework.bundle/Contents/Resources/Versions/2/Python/Framework/components/networking.py”, line 159, in load  
f = self.\_opener.open(req, timeout=self.\_timeout)  
File “/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py”, line 435, in open  
response = meth(req, response)  
File “/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py”, line 548, in http\_response  
‘http’, request, response, code, msg, hdrs)  
File “/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py”, line 473, in error  
return self.\_call\_chain(\*args)  
File “/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py”, line 407, in \_call\_chain  
result = func(\*args)  
File “/usr/lib/plexmediaserver/Resources/Python/python27.zip/urllib2.py”, line 556, in http\_error\_default  
raise HTTPError(req.get\_full\_url(), code, msg, hdrs, fp)  
HTTPError: HTTP Error 503: Service Unavailable

Does anyone know how to fix this?  
I recently installed a GTX 1660 and there has been a few problems with transcoding in Plex since then.

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<div class="post-metadata">

### Author: ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)
#### Post date: [July 16, 2025, 3:13am UTC](https://forums.plex.tv/t/plex-critical-runtime-1128/913570/2 "2025-07-16T03:13:19Z")

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