Short range UniFi AC-LITE?

Question

WiFi

There are two UniFi AC-LITE points. Claimed range is about 100 meters. And there is another one in the office but not ours.
When I walk along the corridor 15 meters from the point, the network is already weak and there is no Internet, it gets very dull. Might screw something up somewhere. There is a Microtik for comparison, so it has a very decent range. Catches even from the street.

Answer 1

Perhaps there is a power cut in the settings.
But in general, such points are rather weak. They are placed one by one in a room and they do not pollute the air (interfering with each other).