I live in sheltered accommodation. Last week I linked my new computer to the wifi no problem. At the same time, however, the wifi completely disappeared from my old computer. Would this be because they were too close together?
Is the Wifi supplied
by your sheltered accommodation? Perhaps you are limited to only one device to be connected at a time. The closeness of them would not have any effect.
they should still be visible, looks like your old PC is not finding them are you sure the scan is actually on? what OS are you using? can you see them on your phone?