Network Slowdown with Deco X50 5G When Windows 11 PC is Connected (Wi-Fi or LAN)
I am experiencing an issue with my TP-Link Deco X50 5G router, where my entire home network slows down significantly when my Windows 11 PC is connected.
It happens both over Wi-Fi and the onboard LAN adapter on the PC. It makes no difference whether the PC is connected via WLAN or LAN; the issue persists on both connections.
When the Windows 11 PC attempts to load a webpage, all other devices in the network are also unable to access the internet properly. The webpage on the PC loads very slowly, and during that time, other devices can barely load any webpages or connect to online services.
What I have tried so far:
- Verified that the problem does not occur when the PC is connected to a mobile hotspot.
- Set up a static IP address for the Windows 11 PC and tried different DNS settings, including Google DNS (8.8.8.8) and Cloudflare (1.1.1.1).
- Updated both the router's firmware and network adapter drivers on the PC.
- Disabled IPv6 on the PC and checked for unusual network traffic, which does not seem to show any high bandwidth usage.
- Ensured QoS is properly configured and tried different Wi-Fi channels.
The issue persists, and only seems to occur when the PC is connected to the TP-Link Deco X50 5G router. The problem does not occur when I connect the same PC to the internet via a mobile hotspot. I used a FritzBox as a Wlan Router in the flat I lived and there where no problems with the windows 11 PC.
Has anyone else experienced a similar issue with this router, or does anyone have suggestions for further troubleshooting?
