@miRouterpls Hi, upon checking, Archer AX1800 V4 doesn't support VPN Client and our official website doesn't mentioned VPN Client either for this model. May I know where you saw VPN Client is...

@BugattiVeyron Even though the extender doesn't support OneMesh, it is still compatible with the router. There are a few different cases related with unstable connection, including WAN connection...

@pmt2 May I know if you received and checked the email from our senior engineer? I've checked the email and our senior engineer would like to have a remote assistance to investigate the issue because...

@DenisBR To assist you efficiently, I've forwarded your case to the TP-Link support engineers who will contact you with your registered email address later. Please pay attention to your email box for...

@RonDeChaka Thanks a lot for the update, glad to hear that it works now.

@REW632 Hi, I've sent you a private message, please check if it helps.