QNAP QTS 5, Plex ver 14.2 cant run any files all codec problems

Plex Media Server
1

Trying to run videos for kids, Wife.

Having huge issues on codecs, over the years its getting worse and worse until now nothing works. Tried privileges issue, no fix. At my wits end. Plex used to just work

Now nothing auto transcodes, can’t look up “codec” folder as can’t find it on QTS, it’s like all the internal NAS files are hidden.

Any help appreciated.

Plex Media Server Logs_2026-01-30_21-31-18.zip (3.8 MB)

Server Version#:
Player Version#:
<If providing server logs please do NOT turn on verbose logging, only debug logging should be enabled>

2

Your QNAP can not connect to plex.tv, as seen in the logs:

Jan 30, 2026 21:03:39.218 [140715401587512] WARN - [HttpClient/HCl#57] HTTP error requesting GET https://plex.tv/updater/products/5/check.xml?build=linux-x86_64&channel=16&distribution=qnap&version=1.42.2.10156-f737b826c (7, Couldn't connect to server) (Failed to connect to plex.tv port 443 after 7644 ms: Couldn't connect to server)

So you have either a DNS, Default router or a firewall issue

Try and type this in a terminal window:

curl https://plex.tv/updater/products/5/check.xml?build=linux-x86_64&channel=16&distribution=qnap&version=1.42.2.10156-f737b826c

Does it return anything?

And lastly you are not following the naming standard for your medias, please see:

3

How do i open a terminal window you mean in plex or on the NAS.

4

On the QNAP NAS

See: Qnap faq.....read me first!

5

[PimpinDownunder@TheOvermind ~]$ curl https://plex.tv/updater/products/5/check.xml?build=linux-x86_64&channel=16&distribution=qnap&version=1.42.2.10156-f737b826c
[1] 13204
[2] 13205
[3] 13206
[PimpinDownunder@TheOvermind ~]$ curl: (7) Failed to connect to plex.tv port 443 after 8045 ms: No route to host
p&version=1.42.2.10156-f737b826c curl https://plex.tv/updater/products/5/check.xml?build=linux-x86_64&channel=16&distribution=qna
[4] 13747
[5] 13748
-sh: [PimpinDownunder@TheOvermind: command not found
[6] 13749
[1] Done(7) curl https://plex.tv/updater/products/5/check.xml?build=linux-x86_64
[2] Done channel=16
[3] Done distribution=qnap
[PimpinDownunder@TheOvermind ~]$ [1] 13204
-sh: [1]: command not found
[4] Done(127) [PimpinDownunder@TheOvermind ~]$ curl https://plex.tv/updater/products/5/check.xml?build=linux-x86_64
[5]- Done channel=16
[6]+ Done distribution=qnap
[PimpinDownunder@TheOvermind ~]$ [2] 13205
-sh: [2]: command not found
[PimpinDownunder@TheOvermind ~]$ [3] 13206
-sh: [3]: command not found
[PimpinDownunder@TheOvermind ~]$ [PimpinDownunder@TheOvermind ~]$ curl: (7) Failed to connect to plex.tv port 443 after 8045 ms: No route to host
-sh: syntax error near unexpected token `(’

6

Start by checking your QNAP DNS settings as well as the default router, and if all is okay, I sadly suspect your ISP DNS is blocking Plex

If so, try on your QNAP to set the DNS to 8.8.8.8 and 8.8.4.4 ( Both are Google DNS ), restart QNAP and try again

7

puzzling thing is it worked previously in the older 1.16 versions etc. ill check these settings now

8

argg set dns for both nas and router no cigar

forwarding ports allready

anything else u reckon

9

Maybe theres a way to place the codecs manually any hints on that

10

@pimpdown

There is no way to download codecs manually (open download).

They are licensed and attached to your account.

I have seen my TS-128 (developmenent system) get confused from time to time.

Go here and confirm everything is configured correctly for your LAN

Screenshot from 2026-01-30 23-12-59
Screenshot from 2026-01-30 23-12-591348×933 113 KB

Important are: IP, Gateway, and DNS server(s)

11

Well… just want to say its sorted, and big thanks from me and fam, @ChuckPa and @dane22.

I found the gateway was incorrect; once rectified, it was all good after that.

For anyone else going down the same path, I also added port forwarding, found in other threads.

Once again, many thanks, can’t believe I missed that.