A user found in logs that radar detection was making a 5 GHz Wi-Fi network change channels and switched from 160 MHz to a non-DFS 80 MHz channel. During two weeks of personal observation, channel changes disappeared. Peak speed near the router fell, but performance in a distant room improved. Some clients supported only 80 MHz to begin with, which also mattered. Because this reflects particular equipment and a specific location, check national channel regulations, surrounding interference, and client capabilities before disabling 160 MHz on every router.
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Switching Wi-Fi from 160 MHz to 80 MHz improves stability in one case
Choose channel width using actual clients, distance, and DFS logs rather than peak speed alone.