Same thing tonight at about 23:35
Confirmed you are unable to load content from anywhere, including server, so not a client-specific issue?
Plex Media Server.1.log this time
And again today around 10:52 PM. All clients unable to connect/stream, plex server service still running, forcing me to restart it manually. Same gibberish requests appear in the logs. Is this a specific client i need to hunt down, or is this something server side? doesn’t seems to be a specific time of day, or particular number of streams. Any other thoughts, or does this issue belong elsewhere?
These are bad clients -OR- your machine freaking out because of all the connections.
I am not a windows guy. I do two things with Windows … wash or break them. 
You need to hunt them down first
Jul 27, 2022 22:54:19.367 [8504] DEBUG - CERT: incomplete TLS handshake from [::ffff:93.125.106.146]:38953: wrong version number
Jul 27, 2022 22:53:37.212 [8100] DEBUG - CERT: incomplete TLS handshake from [::ffff:89.160.171.78]:64190: wrong version number
Jul 27, 2022 22:53:35.094 [8100] DEBUG - CERT: incomplete TLS handshake from [::ffff:93.103.251.112]:59890: wrong version number
Jul 27, 2022 22:55:12.504 [8100] DEBUG - CERT: incomplete TLS handshake from [::ffff:176.36.33.121]:37481: wrong version number
First – verify the clients are 100% up to specification (updates on their devices) and Plex app version.
As far as this being a server problem, No
As far as it being a host problem,
- Might be – strongly leaning in that direction
- After you get those TLS failures the machine keeps authenticating but you continue to have more cascade failures. That’s the symptom of the OS failing in the networks stack.
I do wonder if your choice of OS was the best one for this large of a networking workload as well as if the hardware is up to the challenge. You are running Win 10 instead of a Windows server variant which would be much better suited to the task.
Win 10 is home/office level stuff.
I do know from experience, Linux wouldn’t flinch at this. I have seen windows servers handle hundreds of users.
From my limited experience with windows 10 - it blows up every chance it gets when you push it too hard.
Thanks ChuckPa
Funnily enough, it actually is Windows Server 2022.
Running on an 11600k w/ 32GB DDR4 (though a Xeon w/ECC RAM would probably help too)
That said, I do understand Linux would be a better platform for this, and will likely migrate in the near future, but for the moment, hoping to get this as stable as possible.
I will try and track down the trigger to the network stack cascade failure, and poke in that direction, and make sure everyone has up-to-date clients where I can.
Perhaps you might be able to recommend the easiest way for me to migrate to a Linux base - Also,I have about 120TB of storage, but all on NTFS drives - would it be worth cycling everything onto a linux filesystem, or would you keep as-is?
Looks like those addresses are geolocated in Minsk/Iceland/Belarus/Ukraine. Since all my users are NA based, I wonder if they are unsavory types. Could explain why the HTTP requests are effectively garbage. Ill block those IP ranges on my firewall and see if that helps.
As for how to move from Win → Linux, I can make a recommendation.
I can help with Plex issues on Linux but we’re not equipped to teach Linux (scope is too big)
We were getting off the topic so I moved the posts here.
As for those unsavory requests. They might have been trying to crash your network/firewall stack to gain access.
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