Hello @Kevin_Z,

Goods news of struggling with my network but with conseqense after install the BETA FIRMWAE
All devices are connected after a mulitple reboots with AV enabled but i had to use (Restore all configuration settings to default values, except your login and cloud account information) for have working normally

This is means
    • The ping between the device WIFI and wired are OK now
    • All wifi devices can join the all device wired
    • All WIFI devices can join the other WIFI device
    • New devices are not block and they can you have an IP adress from my DHCP

Whitout the action (RESET TO FACTORY),  the 2 and 3 are not possible

i disabled the (Auto Update) to avoid the same situation and i will stay this configuration until the release of the new firmware

Thanks you for your help
Thanks you TP-LINK