First of all thanks for your reply.
I’ve checked the Windows event viewer and I am not finding any errors in the times when PMS goes down.
On the other hand, I confirm that sometimes I’ve had up to 55 transmissions in parallel and it has worked well, the problem has been occurring for a few weeks, however I’ve been using PLEX for almost a year.
When I had 55 streams in parallel, I checked and both the CPU and GPU weren’t saturated. I have an AMD Ryzen Threadripper 3960X 24-Core processor and an NVIDIA Quadro 2200 graphics card. The vast majority of streams are direct.
In March I had a similar problem, which was fixed with update 1.22.2.4276, at that time I monitored the use of the GPU as I thought it was saturated but that was discarded.
This is the post that was created at that time: