RDP Lag and Disconnects on Server 2025

Dear Briston Capital,

Thank you for contacting us regarding the performance issues you're experiencing with Remote Desktop sessions on Windows Server 2025.

We understand that lag and random disconnects are disrupting remote work and server maintenance, especially since these issues began after the upgrade. This behavior may be related to changes in network handling, updated RDP protocols, or compatibility with existing drivers and configurations.

To begin troubleshooting, we recommend the following steps:

Ensure that all network drivers and firmware on the host server are updated to versions compatible with Windows Server 2025.

Review Group Policy settings under Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services to confirm that session timeouts and bandwidth optimizations are properly configured.

Disable UDP for RDP by setting the registry key fClientDisableUDP to 1 under HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services\Client.

Monitor network stability using Performance Monitor or Event Viewer, focusing on disconnect events and latency spikes.

If the issue persists, we suggest testing with a different client version or network segment to isolate the cause. You may also submit logs via the Feedback Hub to assist our engineering team in identifying any regression.

Let me know how it goes, and if this answer helps, feel free to hit “Accept Answer” so others can benefit too 😊 T&B, Harry.