Frequent reconnecting WiFi Gl MT300N

Hello! MT300N works in conjunction with a 4G modem, and distributes the Internet on a smartphone and a laptop on the wifi. The equipment is located in a room at a distance of 5m. Recently there has been some losses due to the on WiFi devices. Smartphone and laptop are good, with the Netgear router work without problems. Firmware 2.22 router without additions. Log attached.