@Joseph-TP Hello Joseph, hope you are well. After contacted by the support team i have provided all requested info and my network and router setup outline in order to include a permanent solution...

@Joseph-TP hi Joseph, Thanks for the quick reply. the drop outs are not in the wifi, they are in phone calls using wifi calling when i move from node to node. I reverted back to the standard 1.2.1...

@Joseph-TP Also i have dropouts in phone (wifi calling) and video calls when roaming from node to node. Reverted back to 1.2.1 and everything went back to normal Generally fw 1.2.3 is too buggy for me

@Joseph-TP hello Joseph i regret to say that the exact same problem came back with the latest firmware (1.2.3 Build 20260127 rel.53303(4555)). Again when i copy from the pc to nas i get full gigabit...

@Arthacus there is a beta 1.2.1 firmware that resolved my issues, send to me by e-mail from the engineers. Maybe this can help you too.

@staza For general information i updated both routers to a 1.2.1 beta firmware that tp-link engineers sent me and everything is fine now. Even swapt back the main and satellite routers and everything...