@gazza_2 As far as I know, the AI cube is a 4G router with smart speaker and the other one is a CPE, if there have ethernet ports and your computer can access internet from that ports, theoretically,...

@kovizsombor I found that you email our tech support as well. To help you to fix this issue, our engineer will email you later. Please wait a while for their reply.

@Vindel Do you have any ticket number or case number? I checked our email system but not your found. Meanwhile, could you please provide a link of the email contact info you used? Besides, for the...

@Twen Thanks for your valued reply. If so, you can contact the ISP to do some troubleshooting and make the network connection more stable. After that, you can test the speed you get form the...

@Syko80 We can connect 2 wifi extender to the same sender, so do not worry about that. Try to use the tpPLC utility to pair them to give it a shot. Meanwhile, you can reset them and re-pair them.

@laserbeam Hi you post the same thread. https://community.tp-link.com/en/home/forum/topic/164930