Unable to update to 1.43.1.10540

[Eds1989]

I have found this morning my update task has done nothing, and Plex still shows an update available.
Checking the PlexServerAutoUpdater log, it seems to create a folder in the updates folder for the new version, but the file it downloads is older.

Latest version and folder name is:
1.43.1.10540

Actual file downloaded is:
1.42.2.10156

Log below

2026-03-21 17:03:00 Verify the updates folder is specified.
2026-03-21 17:03:00 Verify the updates folder, D:\Plex Media Server\Updates exists.
2026-03-21 17:03:00 Getting ready to download the latest package.
2026-03-21 17:03:00 Checking for the latest version from Plex.
2026-03-21 17:03:00 The update channel is set for Plex Pass.
2026-03-21 17:03:00 Sending request to Plex: https://plex.tv/api/downloads/5.json?channel=plexpass
2026-03-21 17:03:00 Parsing the information from Plex.
2026-03-21 17:03:01 Creating folder: D:\Plex Media Server\Updates\1.43.1.10540-3972d551c\packages.
2026-03-21 17:03:01 Downloading the latest installation package from Plex.
2026-03-21 17:03:03 Checking if the installation package is valid.
2026-03-21 17:03:03 The package is valid. The checksums match.
2026-03-21 17:03:03 Latest packages file: D:\Plex Media Server\Updates\1.43.1.10540-3972d551c\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe
2026-03-21 17:03:03 The latest file version available for download is 1.43.1.10540.
2026-03-21 17:03:03 Current version: 1.43.0.10231.
2026-03-21 17:03:03 Latest version: 1.43.1.10540.
2026-03-21 17:03:07 Could not process the response result. Message: An error occurred while sending the request..
2026-03-21 17:03:11 Could not process the response result. Message: An error occurred while sending the request..
2026-03-21 17:03:11 Checking for server update.
2026-03-21 17:03:15 Could not process the response result. Message: An error occurred while sending the request..
2026-03-21 17:03:19 Could not process the response result. Message: An error occurred while sending the request..
2026-03-21 17:03:19 The server in use status could not be determined. The server can be updated if you wish.
2026-03-21 17:03:19 Update is available
2026-03-21 17:03:19 START: Stopping the Plex service.
2026-03-21 17:03:29 END: Stopping the Plex service.
2026-03-21 17:03:29 START: Stopping the Plex Server processes.
2026-03-21 17:03:29 Stopping the Plex Media Server processes.
2026-03-21 17:03:29 Stopping Plex Media Server.exe processes.
2026-03-21 17:03:29 Stopping Plex Media Scanner.exe processes.
2026-03-21 17:03:29 Stopping Plex Tuner Service.exe processes.
2026-03-21 17:03:29 Stopping PlexDlnaServer.exe processes.
2026-03-21 17:03:29 Stopping PlexNewTranscoder.exe processes.
2026-03-21 17:03:29 Stopping PlexScriptHost.exe processes.
2026-03-21 17:03:29 Stopping PlexTranscoder.exe processes.
2026-03-21 17:03:29 END: Stopping the Plex Server processes.
2026-03-21 17:03:29 START: Running update: D:\Plex Media Server\Updates\1.43.1.10540-3972d551c\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe.
2026-03-21 17:03:29 Starting Plex installation.
2026-03-21 17:03:29 Setting the installation log path.
2026-03-21 17:03:29 Installation log path: C:\Users\Eds\AppData\Local\Temp\PlexMediaServerInstall.log.
2026-03-21 17:03:29 Delete any previous installation logs.
2026-03-21 17:03:29 Run Plex installation - 'D:\Plex Media Server\Updates\1.43.1.10540-3972d551c\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe /install /quiet /norestart /log "C:\Users\Eds\AppData\Local\Temp\PlexMediaServerInstall.log"'.
2026-03-21 17:03:30 Plex install has finished.
2026-03-21 17:03:30 END: Running update.
2026-03-21 17:03:30 START: Deleting Plex Run registry value.
2026-03-21 17:03:30 END: Deleting Plex Run registry value.

Update then fails to complete as it is trying to install an older version:

[0B58:0948][2026-03-21T17:03:30]e000: Error 0x80070666: Cannot install a product when a newer version is installed.

Is this a Plex side issue?

[TechieGuy12]

That is odd. The install package was downloaded into the incorrect folder. It does detect the newer version, however.

Can you try removing the D:\Plex Media Server\Updates\1.43.1.10540-3972d551c folder and see if it tries to download the correct version?

[Eds1989]

Sorry for the delay.
For this particular instance, I did try deleting it, and I'm not entirely sure I can recall exactly what it did but I know running the updater again still failed with the wrong version.

It's odd, as I left it, and eventually it started working. I've also had instances where the update kills plex, fails to update, and doesn't start Plex again.
Similarly, if I start Plex and just let the updater try over and over, it does eventually seem to update (perhaps after another Plex update is released?).

[Eds1989]

A couple more occassions this week where it is not behaving itself:
8/5/26

2026-05-08 04:00:02 Getting windows user.
2026-05-08 04:00:02 Checking if user is an administrator.
2026-05-08 04:00:02 Initializing the silent update.
2026-05-08 04:00:02 Plex install folder: C:\Program Files (x86)\Plex\Plex Media Server.
2026-05-08 04:00:02 Getting the service user.
2026-05-08 04:00:02 The Plex service is installed. Let's get the user associated with the service.
2026-05-08 04:00:02 The Plex service user: EDS89.COM\eds.
2026-05-08 04:00:02 Plex local data folder: D:.
2026-05-08 04:00:02 Updates folder: D:\Plex Media Server\Updates.
2026-05-08 04:00:02 Update channel: Plex Pass.
2026-05-08 04:00:02 64-bit: False.
2026-05-08 04:00:02 Verify the updates folder is specified.
2026-05-08 04:00:02 Verify the updates folder, D:\Plex Media Server\Updates exists.
2026-05-08 04:00:02 Getting ready to download the latest package.
2026-05-08 04:00:02 Checking for the latest version from Plex.
2026-05-08 04:00:02 The update channel is set for Plex Pass.
2026-05-08 04:00:02 Sending request to Plex: https://plex.tv/api/downloads/5.json?channel=plexpass
2026-05-08 04:00:04 Parsing the information from Plex.
2026-05-08 04:00:04 The file, D:\Plex Media Server\Updates\1.43.2.10687-563d026ea\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe, exists. Checking to see if the package is valid.
2026-05-08 04:00:11 Checking if the installation package is valid.
2026-05-08 04:00:11 The package is valid. The checksums match.
2026-05-08 04:00:11 Since the package is valid - not downloading again.
2026-05-08 04:00:11 Latest packages file: D:\Plex Media Server\Updates\1.43.2.10687-563d026ea\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe
2026-05-08 04:00:11 The latest file version available for download is 1.43.2.10687.
2026-05-08 04:00:11 Current version: 1.43.0.10231.
2026-05-08 04:00:11 Latest version: 1.43.2.10687.
2026-05-08 04:00:11 Checking for server update.
2026-05-08 04:00:11 The server is not in use continuing to perform the update.
2026-05-08 04:00:11 Update is available
2026-05-08 04:00:11 START: Stopping the Plex service.
2026-05-08 04:00:12 END: Stopping the Plex service.
2026-05-08 04:00:12 START: Stopping the Plex Server processes.
2026-05-08 04:00:12 Stopping the Plex Media Server processes.
2026-05-08 04:00:12 Stopping Plex Media Server.exe processes.
2026-05-08 04:00:12 Access is denied
2026-05-08 04:00:12 at System.Diagnostics.Process.Kill()
at TE.Plex.MediaServer.StopProcess(String processName)
at TE.Plex.MediaServer.StopProcesses()
at TE.Plex.MediaServer.Update()
at TE.Plex.SilentUpdate.Run()

12/5/26

2026-05-12 04:00:02 Getting windows user.
2026-05-12 04:00:02 Checking if user is an administrator.
2026-05-12 04:00:02 Initializing the silent update.
2026-05-12 04:00:02 Plex install folder: C:\Program Files (x86)\Plex\Plex Media Server.
2026-05-12 04:00:02 Getting the service user.
2026-05-12 04:00:02 The Plex service is installed. Let's get the user associated with the service.
2026-05-12 04:00:02 The Plex service user: EDS89.COM\eds.
2026-05-12 04:00:02 Plex local data folder: D:.
2026-05-12 04:00:02 Updates folder: D:\Plex Media Server\Updates.
2026-05-12 04:00:02 Update channel: Plex Pass.
2026-05-12 04:00:02 64-bit: False.
2026-05-12 04:00:02 Verify the updates folder is specified.
2026-05-12 04:00:02 Verify the updates folder, D:\Plex Media Server\Updates exists.
2026-05-12 04:00:03 Getting ready to download the latest package.
2026-05-12 04:00:03 Checking for the latest version from Plex.
2026-05-12 04:00:03 The update channel is set for Plex Pass.
2026-05-12 04:00:03 Sending request to Plex: https://plex.tv/api/downloads/5.json?channel=plexpass
2026-05-12 04:00:07 Parsing the information from Plex.
2026-05-12 04:00:07 The file, D:\Plex Media Server\Updates\1.43.2.10687-563d026ea\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe, exists. Checking to see if the package is valid.
2026-05-12 04:00:14 Checking if the installation package is valid.
2026-05-12 04:00:14 The package is valid. The checksums match.
2026-05-12 04:00:14 Since the package is valid - not downloading again.
2026-05-12 04:00:14 Latest packages file: D:\Plex Media Server\Updates\1.43.2.10687-563d026ea\packages\PlexMediaServer-1.42.2.10156-f737b826c-x86.exe
2026-05-12 04:00:14 The latest file version available for download is 1.43.2.10687.
2026-05-12 04:00:14 Current version: 1.43.0.10231.
2026-05-12 04:00:14 Latest version: 1.43.2.10687.
2026-05-12 04:00:14 Checking for server update.
2026-05-12 04:00:14 The server is not in use continuing to perform the update.
2026-05-12 04:00:14 Update is available
2026-05-12 04:00:14 START: Stopping the Plex service.
2026-05-12 04:00:15 END: Stopping the Plex service.
2026-05-12 04:00:15 START: Stopping the Plex Server processes.
2026-05-12 04:00:15 Stopping the Plex Media Server processes.
2026-05-12 04:00:15 Stopping Plex Media Server.exe processes.
2026-05-12 04:00:15 Access is denied
2026-05-12 04:00:15 at System.Diagnostics.Process.Kill()
at TE.Plex.MediaServer.StopProcess(String processName)
at TE.Plex.MediaServer.StopProcesses()
at TE.Plex.MediaServer.Update()
at TE.Plex.SilentUpdate.Run()

Currently in that 1.43.2.10687-563d026ea\packages directory is:
PlexMediaServer-1.42.2.10156-f737b826c-x86

Deleting the file and running the updater again just downloads the same 1.42.2 installer :(