I inspect HMOs and i have come across a few cases recently where the modem to give all WiFi in the property is located on the landing on the first floor. Obviously it is here to reach as many rooms as possible. Does it present a fire risk? Is there history of these devices catching fire? If so, enclosing it in a fire boarded cupboard may reduce the signal. We do not want to deprive the occupants ( many of whom may be students) of good WiFi but need to balance this against the risk. Any advice gratefully received.  

I have no information on the fire risk of a modems but if you are concerned conduct a fire risk assessment and provide active fire protection if necessary.