Hello! Sore problem. There is a Keenetic Giga II router. Works from 03/08/2014 in an apartment (5th floor) of an apartment building (18 floors). There is a cell tower on the roof of the house. There were no work orders. Starting from 2020/2021, for a short time (1-5 minutes), sometimes the wi-fi signal began to disappear in fragments. It is impossible to determine the pattern of signal loss: it can be 3 times a day or not at all. Wherein: * Internet via ethernet always works stably;