Sometimes you can't have the luxury of choosing the 5GHz frequency band or selecting a "lonely" channel. In such cases, it may be worthwhile to limit your router to sending out signals at intervals of 20MHz. This might reduce overall throughput a bit, but it will give you a stronger signal with less dropouts:

There are a lot of Wi-Fi monitoring tools around to measure the impact of all the tips we just gave you and spit out bandwidth values. However, none of them come close to the accuracy of . This tool has a client for the laptop/PC you're about to measure and a server tool that sits on a PC directly connected to the router. By having analyzers on both ends, you know exactly how fast your Wi-Fi actually is.

My advice: go through your space and try out different locations for both the router and the clients. The heatmapping tools should give you a good indication of the best spot.