My Wi-Fi has had issues for the past few months with disconnected after 5-6pm. I have contacted my ISP several time and each time they have told me the problem is on my part but I cannot seem to figure out what's wrong with my computer. I reset it to factory settings and installed anti-malware programs. I have an Acer Inspiron E15. When I say unstable I mean the wifi will shut off at random times, go down to two bars, slow down so far it can't be used, etc. Please help this issue is getting very annoying. Is it a virus? A problem with a computer?