Why Does the SSID of an AP Disappear Intermittently on a STA When the AP Is Running Normally?
Possible causes are:
Automatic channel adjustment is enabled on the AP, so the AP continuously adjust channels to obtain the best radio performance. The radio module of the AP is reset when the channel is changed. You can run the channel-mode fixed command in the radio profile view to solve this problem.
The STA is far from the AP or is blocked by an obstacle. As a result, the receive signal strength on the STA is weak.