Hey everyone! I'm having a major problem with two RDS running on Windows Server 2019; they're incredibly slow. Almost every application I try to use—whether it's Task Manager, Windows Explorer, or Outlook—freezes with just a small click. I have a solid setup, with around 120GB of RAM, 12 cores across 2 sockets, and an 800GB SSD, serving about 50 users simultaneously. Restarting the servers temporarily resolves the issue, but it comes back after a couple of days. I've experienced the same problem on another RDS hosted on a different Proxmox instance. Also, whenever I try to reboot, it often gets stuck on 'reboot in progress.' I've made adjustments to the processor type in Proxmox, switching things up, but nothing has helped. I'm out of ideas—anyone have suggestions?
4 Answers
You might want to try tweaking some registry settings. There’s an old key that helped with slow connections on 2019 RDS. You can disable UDP connections by going to HKLMSOFTWAREPoliciesMicrosoftWindows NTTerminal ServicesClient in the Registry Editor and creating a DWORD entry named 'fClientDisableUDP' with a value of 1. This could help if you’re experiencing issues related to the udp transition in 2019.
Just a clarification on your setup—are these servers virtualized? If you're running a cluster, is there a connection broker or gateway that could be introducing delays? Also, how are your CPU and RAM utilization numbers looking? Disk I/O could be another factor here.
One thing to consider is your server's power settings. I had a similar issue before, and switching to a 'max performance' profile really did the trick for me. It could help if you haven’t already tried it!
Yeah, I already checked that, but it didn't seem to make a difference. I heard that disabling the Windows Update service might help, so I might give that a shot.
I’ve seen slow performance related to EDR (Endpoint Detection and Response) software issues before. It’s worth checking if that’s running on your servers and causing the lag.
I’ve already set that through group policy, but it didn’t make any changes.