Very slow and erratic wifi connection

Question

My wifi connection is very erratic. Often when I am working online, my internet connection will suddenly be lost. When I look at my Task Manager, the Performance graph shows no activity and lists my connection speed at 0 Kbps. I often have to disconnect and reconnect, which sometimes brings it back, but not often. When my connection comes back, the Performance graph shows wild spikes. My laptop is the only computer working on wifi, and the router is not far from the laptop. I am also disappointed in my internet speed, even when working with a wired connection. It seems to be faster on weekdays, slower on weekends, and super slow in the evenings. Before I had Comcast, I had Verizon, and I never had any issues with wifi. Comcast was supposed to greatly improve my connection speed, but instead it has greatly diminished my internet speed and offers a terrible, erratic, and often nonexistent wifi connection.

Answer 1

Thank you so much for your reply. Funny...Comcast never mentioned anything about speed depending on neighborhood density when they were luring me away from Verizon with promises of greatly improved internet speed. I now wish I had never left Verizon. I should have believed my friends when they told me how awful Comcast was. Thanks again for your reply.