Not available connect Ruckus AP

[TL]

Hi all,  We use the following Ruckus Wifi HW equipment.

Controller  : ZD1200
AP : R650

Introduced in February of this year, we have been using it without problems in recent months. But, since last week, suddenly many WIFI devices are not able to connect. These devices can connect to the AP but cannot obtain IP with DHCP. These devices have the following in common: WindowsPC(Win10/64bit/Ver21H2), IEEE802.11ac or ax ). we updated to all the latest version, reset the network, etc., but we can not connect well. We told the buyer about the situation, but they won't support us. Please help us.

[DaisukeNimiya]

That's incredibly frustrating when something reliable suddenly goes haywire! It sounds like you've covered all the usual troubleshooting steps. Given that it's specifically DHCP issues with newer Windows PCs, it makes me wonder if a recent Windows update or driver update is clashing with the router's firmware, perhaps in a way that my Granny wouldn't even anticipate. Have you checked if there's an older, stable firmware version for your router you could roll back to?