# 401 Unauthorised

**URL:** <https://forums.plex.tv/t/401-unauthorised/934891>\
**Category:** Plex Media Server\
**Tags:** server-windows\
**Created:** [December 28, 2025, 3:11pm UTC](https://forums.plex.tv/t/401-unauthorised/934891 "2025-12-28T15:11:15Z")\
**Posts on this page:** 18\
**Page:** 1

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**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [December 28, 2025, 3:11pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/1 "2025-12-28T15:11:15Z")

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FIRSTLY!

For 11 bucks a month, get your s£^$ together Plex devs!!! Jeeeezz….

I get the dreaded 401 Unauthorised, after ONE SINGLE REBOOT. Nuff said.

If you can’t help with said info, then just F$%king jog on.

If you can, give it go.

Server Version#: Latest!!!  
Player Version#: All!!!

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**Author:** ![dbirch](https://avatars.discourse-cdn.com/v4/letter/d/f19dbf/32.png) [@dbirch](https://forums.plex.tv/u/dbirch)\
**Post date:** [December 28, 2025, 3:46pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/2 "2025-12-28T15:46:00Z")

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Can you post a copy of your [server logs?](https://support.plex.tv/articles/200250417-plex-media-server-log-files/)

I am running 4 different Plex servers all on windows and dont have any of these issues. Are you trying to run plex as a service? have you ever opened Plex as an admin? (BAD IDEA)

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**Author:** ![Yaracuy](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/yaracuy/32/313162_2.png) [@Yaracuy](https://forums.plex.tv/u/Yaracuy)\
**Post date:** [December 28, 2025, 4:00pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/3 "2025-12-28T16:00:27Z")

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> [@actionad](#):
>
> If you can’t help with said info, then just F$%king jog on.

I really admire your patience and good will, @dbirch

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**Author:** ![dbirch](https://avatars.discourse-cdn.com/v4/letter/d/f19dbf/32.png) [@dbirch](https://forums.plex.tv/u/dbirch)\
**Post date:** [December 28, 2025, 5:12pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/4 "2025-12-28T17:12:41Z")

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@Yaracuy been dealing with end user support for different things for over 20 years now. In most cases what you are seeing is the frustration venting over an issue that the user has been attempting to deal with by themselves unsuccessfully. Once the steam is released often times things become much more civilized.

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**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\
**Post date:** [December 28, 2025, 9:34pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/5 "2025-12-28T21:34:25Z")

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@actionad

If you’ll provide some info, we can help.

If you want to do this on your own, I can offer this.

> **[GitHub - ChuckPa/UserCredentialReset: User Credential Reset utility for Plex](https://github.com/ChuckPa/UserCredentialReset)**
>
> User Credential Reset utility for Plex

It runs on the native host (Linux) or inside the container environment to talk to [Plex.tv](http://Plex.tv) (needs a working DNS and Gateway) and get credentials setup.

Once the script and [Plex.tv](http://Plex.tv) communicate (regardless the LAN IP addressing – which is often a problem), you’ll be able to access it provided the PMS server is on a RFC-1918 LAN or hosted in a data center

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**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [December 29, 2025, 1:32am UTC](https://forums.plex.tv/t/401-unauthorised/934891/6 "2025-12-29T01:32:21Z")

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Windows, as I have indicated above.

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**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\
**Post date:** [December 29, 2025, 1:33am UTC](https://forums.plex.tv/t/401-unauthorised/934891/7 "2025-12-29T01:33:20Z")

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I’ll get one of the Windows guys to come help.

Sorry I missed your tag

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**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [December 29, 2025, 1:38am UTC](https://forums.plex.tv/t/401-unauthorised/934891/9 "2025-12-29T01:38:10Z")

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Virgin install. 24 hours old. Nothing done. OOTB. One single reboot F$&%s it up. For $11 per month and a defective product, you would be uncivilised as well, especially as I have been using Plex for well over a decade, on and off.

[Logs.zip](https://forums.plex.tv/uploads/short-url/fWiAkzN6ziMJl4oqoKXGGda2Ov4.zip) (699.1 KB)

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**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [December 29, 2025, 1:39am UTC](https://forums.plex.tv/t/401-unauthorised/934891/10 "2025-12-29T01:39:04Z")

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Sure thing.

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**Author:** ![ChuckPa](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/chuckpa/32/79710_2.png) [@ChuckPa](https://forums.plex.tv/u/ChuckPa)\
**Post date:** [December 29, 2025, 1:54am UTC](https://forums.plex.tv/t/401-unauthorised/934891/11 "2025-12-29T01:54:59Z")

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While I don’t know all the Windows particulars, I see things which bother me.

1. You’re running beta (1.43.0).
2. There are a lot of missing system plug-ins which should exist.

Therefore, to me (based on what I see in Linux), something went sideways with the installation.

Have you considered backing down to the Public (production) build 1.42.2 which is known stable ??

On Linux, when this happens, backing down from Beta and installing Public will remedy problems.

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**Author:** ![FordGuy61](https://avatars.discourse-cdn.com/v4/letter/f/22d042/32.png) [@FordGuy61](https://forums.plex.tv/u/FordGuy61)\
**Post date:** [December 29, 2025, 3:13am UTC](https://forums.plex.tv/t/401-unauthorised/934891/12 "2025-12-29T03:13:44Z")

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Agree with @ChuckPa to back down to the public release.

Uninstall Plex Media Server via standard Windows uninstall. This will remove the Plex application, but not the [Plex Data Folder](https://support.plex.tv/articles/202915258-where-is-the-plex-media-server-data-directory-located/). Do not use Revo, CCleaner, or similar tools.

Reboot the PC.

Download and install the current public release, v.1.42.2.10156.

See if you can login, access libraries, etc.

If you still have problems, update the thread and include a new set of [server log](https://support.plex.tv/articles/200250417-plex-media-server-log-files/) files.

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<div class="post-metadata">

**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [December 29, 2025, 7:46am UTC](https://forums.plex.tv/t/401-unauthorised/934891/13 "2025-12-29T07:46:07Z")

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Was running production release. Thought I would try Beta. Exactly the same issue. Works until reboot count \> 0. I will go back to prod. And no Windows cleaning tools. I will leave %localappdata%, and registry entries. I’m in I.T. (on the tools), so you can be as technical as needed.

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**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [January 3, 2026, 1:45am UTC](https://forums.plex.tv/t/401-unauthorised/934891/14 "2026-01-03T01:45:41Z")

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Ok. So:

Uninstalled Beta. NO cleanup performed as suggested by @FordGuy61 . Installed prod release. REBOOT count = 0. Plex is seemingly FULLY FUNCTIONAL. [Server logs:](https://support.plex.tv/articles/200250417-plex-media-server-log-files/)

[Plex Media Server Logs\_2026-01-03\_12-40-58.zip](https://forums.plex.tv/uploads/short-url/EViNUlR57bLwEg5QeAwnQZX766.zip) (794.6 KB)

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<div class="post-metadata">

**Author:** ![actionad](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@actionad](https://forums.plex.tv/u/actionad)\
**Post date:** [January 3, 2026, 2:18am UTC](https://forums.plex.tv/t/401-unauthorised/934891/15 "2026-01-03T02:18:42Z")

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REBOOT count = 1. Plex is non functional. [Server logs:](https://support.plex.tv/articles/200250417-plex-media-server-log-files/)

[Plex Media Server Logs\_2026-01-03\_13-16.zip](https://forums.plex.tv/uploads/short-url/lDAKl67OMV7i9TRo4O9lA7iymTY.zip) (889.0 KB)

@ChuckPa Thank you for your help. Any Windows team members want to weigh in?

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<div class="post-metadata">

**Author:** ![jontelinkan](https://avatars.discourse-cdn.com/v4/letter/j/f0a364/32.png) [@jontelinkan](https://forums.plex.tv/u/jontelinkan)\
**Post date:** [February 16, 2026, 6:45pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/16 "2026-02-16T18:45:20Z")

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I’ve used Plex for many years and it has really been working great! However, the last restarts of my server has ended up in this issues occuring. It’s really frustrating since nothing has de facto changed in regards to my setup, except for regular windows updates.

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**Author:** ![jontelinkan](https://avatars.discourse-cdn.com/v4/letter/j/f0a364/32.png) [@jontelinkan](https://forums.plex.tv/u/jontelinkan)\
**Post date:** [February 16, 2026, 6:56pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/17 "2026-02-16T18:56:45Z")

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I downloaded and installed Version 4.158.0 which seems to have solved the issue for now.

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**Author:** ![AGoodName](https://avatars.discourse-cdn.com/v4/letter/a/d9b06d/32.png) [@AGoodName](https://forums.plex.tv/u/AGoodName)\
**Post date:** [April 22, 2026, 3:07pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/18 "2026-04-22T15:07:38Z")

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I wasted an hour trying to solve this on a new setup, then I saw an article that Plex is blocking Hetzner IP ranges. Keep this in mind. I regret paying for a pass now. Might be time to look at other options instead of Plex. What a disappointment and waste of time, especially because you don’t even get a helpful message, just 401.

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**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\
**Post date:** [July 21, 2026, 3:08pm UTC](https://forums.plex.tv/t/401-unauthorised/934891/19 "2026-07-21T15:08:33Z")

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