@Umbra Kindly provide more details for us to understand your issue better, then we can try to help you. Thanks.

@Arkadio Hi, thanks for getting back. Can I have the current router version on your Archer C6? How much bandwidth you paid for the internet? BTW, the tech team was made aware of your issue, they will...

@Drako As you can confirm, this adapter connects properly to the TD-W8960N signal, while it had an issue to connect to the HHG2500 stably, you are suggested to check with the router support to see if...

@Paul__ Hello, hari.i upgraded to a beta firmware for his Archer C6, do you mean you also need that? If yes, you can get that version here: https://community.tp-link.com/en/home/forum/topic/207232

@storeblaa Yes, you can try to install the latest public driver: https://static.tp-link.com/2020/202006/20200601/00015960-RTLWlanU_WindowsDriver_1030.38.0712.2019_Drv_3.00.0032.L.zip Please check on...

@Wandering_Dazed Sorry, my fault. As far as we can confirm, we only receive similar feedback on C2300 v1, C2300 v2 should work without an issue when connecting to the VPN, so we only provide the beta...