@Minister1 setting up the DHCP manually on the extenders solved my issue.

Got the same issue here not only whatsapp but also on computer cant connect to some gaming services.

@woozle Yes Hardware Version V2. It is indeed weird EX20v also strong device and cant form one mesh together with the sister device REX605. Both TP link and quite new devices. at least could work...

@woozle i already tried that i did factory reset to my Extender and used wps button to connect my extender to main router the connection completed succesfully but repeater broadcast with different...

@woozle I have mesh settings but i dont see anything called easy mesh or one mesh in the settings of my main router GUI. When i go to mesh settings i have the message below and enable or disable...

Hi @woozle thanks for replying. Unfortunately tether app says that the current main router doesnt support one mesh. so i cant benefit of one mesh feature either.