Hi @a_ridwan9,
The description of your requirement is not entirely clear. However, I understand that you expect wireless users to be first redirected to an external webpage before undergoing RADIUS (dot1x) authentication to access network resources.
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Try the below steps to narrow down the issue:
First try to find out if disconnections are experienced on the 2.4 GHz band, 5 GHz band, or both on these APs.
Keeping the channels under Auto mode will use the non-overlapping channels for 2.4 GHz (1, 6,...
