In my home, the router is on the north side of the first floor. The signal on the south side of the second floor is very inconsistent. Zoom calls are difficult because the signal drops at random intervals. I’ve tried different approaches to fix the problem.
Xfinity, my ISP, sells XFi pods. You hook up these pods all over the house to create something like a mesh network. You should be able to move seamlessly in the network without losing a signal. But these devices caused other interference. My phone consistently connected to one Pod, disconnected from another, and then reconnected. It was a constant struggle. I got rid of them.
Then I bought a WiFi range extender. I placed it on the south side of the first floor. The signal became stronger on the second floor, but temporarily interrupted. I suspect there is some interference with neighboring networks. (There are about a dozen in my immediate area).
My most recent solution seems to have done the trick: an external USB adapter with a 6-inch antenna. Now I can connect a laptop upstairs to the router downstairs. So far the signal has not dropped out. This device is impractical for smartphones or tablets, but works well for a laptop. I keep it plugged into the USB hub so that when I plug it in, I can automatically connect to the network. This device is also a lot cheaper than anything else I’ve tried. The adapter is only $ 17.
The students consistently complain about weak WiFi signals in different parts of their home. This cheap device can offer a solution.