We have been having WiFi issues at home and after some trouble shooting we have determined the cause of the problem is my RW enabled nexus 5 phone. When I turn the WiFi on my phone off no problems with speed, when it is on either a speed test can not be conducted or it is very low. Any ideas? All I have done so far is turn phone off for a while and back on, needless to say not tech savvy.
Is your router old by any chance? Have you tried rebooting the router - Unplug it, (if it has a built in battery backup, turn it off) for a minute or so and plug it back into the outlet. Let the router go through it’s boot up routine then give it a speed test with Nexus WiFi OFF first, then do the speed test with it ON.