when you first setup it using APP, do you check show password? have tried different channel on the main router and channel width? if no different, send email to TP-LINK support and they should reply.

If your wan IP address is a private IP address,you need also open port on your netgear router.

Here is the beta firmware: US version : http://static.tp-link.com/C1200 V1(US).zip Other location: http://static.tp-link.com/C1200 V1(EU).zip

phrozact wrote Just thought I'd post here to say I'm having the same issue with 2.4GHz on my RE355. No issues with 5GHz, but on 2.4GHz while my devices can connect, there will be no Internet...

Here is the beta firmware for C7V2 to fix the VALN problem: http://static.tp-link.com/ArcherC7v2_en_eu_3_15_1_up_boot(160920).rar

Here is the beta firmware for C7V2 to fix the VALN problem: http://static.tp-link.com/ArcherC7v2_en_eu_3_15_1_up_boot(160920).rar