On Friday, 17 November 2023 16:53:41 CET basti wrote: > The Access Point is OpenWRT and operate in > AC mode, Channel 64 (5320 MHz). > ... > root@debian:~# iw reg get > global > country DE: DFS-ETSI > (2400 - 2483 @ 40), (N/A, 20), (N/A) > (5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW > (5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW If you specify a non-DFS channel, then it probably works. I have a 'tab' open on [1] and [2] to research it further, but haven't gotten around to it yet. So selecting a non-DFS channel is a workaround but hopefully there is also an actual solution. Asking on the OpenWrt forums is more likely to find a solution to this problem then on this list (but maybe you're lucky). [1] https://forum.openwrt.org/t/5-ghz-wlan-craps-out-upon-radar-detection-start-dfs-cac-failed/ [2] https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=cfd2f3bf6f4825b66e9a4ca9cba7c65b93eb89c7
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