Hi@MalikPc , Welcome to our community. For your case, please try suggestions of Troubleshooting: Unstable wireless connection on TP-Link router.

Hello @giang2408202 , Welcome to our community. It seems that you have forgotten the password to access your TP-Link device. If you are trying to connect to WiFi and it asks for a password (also...

Hello @Guerrino , Welcome to our community. First, please confirm that you have selected the correct operation mode. See the video for the difference: How to set up a TP-Link VoIP DSL modem router In...

Hello @Cattalins , Thanks for contacting our community. I noticed that the EX521 is a custom-designed product, and many of its specifications may differ from our regular products. However, regarding...

Hello @0scar , Welcome to our community. Is it the model of your adapter Archer T3U? Have you tried the driver in this post? Additionally, could you provide more details about your device's...

Hello @Gamingdave , Welcome to our community. Could you confirm the firmware version of your router? What if you set the QoS speed to 85% of your speed? If possible, please take screenshots of the...