SGC connected via LAN (WiFi dongle physically disconnected from the microcomputer) disconnects from LAN once every 2-3 days (cannot be found even by MAC address in the network), LAN port on the switch is lit as if SGC is still connected. The only help is to turn the SGC off and on again (using the physical ON/OFF button on the controller). In my network I only use quality products (Mikrotik, UBNT) with the latest FW, no other device in my network does this, also the cable is quality and routed away from high voltage. If the connection works the pings are lossless and always less than 1ms. Fortunately, the controller disconnected in this way continues to perform the programmed functions.

Is there any way to solve this problem?

I am currently preparing a special AP (WiFi transmitter) directly for the grow room and will connect the SGC to this WiFi. But I probably don't need to explain too much that cable is just better if it works.