I have an acer Aspire SW5-011, 32 bit, running windows 8.1. It is up to date on all drivers. On October 29th, I found that it was no longer connected to wifi, and every time I try reconnecting, the screen flashes suddenly, turning black and back on again and closes the networks window as if I had never opened it at all. Sometimes it does this as soon as I click on the network, sometimes I can get all the way to entering the network security key and hitting enter.   It happens every time, and only when I open that window and try to connect to an internet connection. I've tried restarting, adjusting network setting, forgetting and logging back into my wifi, doing network diagnosis troubleshoots, updating drivers (how I know it's all up to date), checked to make sure my antivirus wasn't affecting it, and nothing seems to be working. Most of the time when I do diagnosis it doesn't give me any error code, but one time it gave me a "this computer was manually disconnected from (my wifi network)" error, but gave no solutions to fix it. I'm kind of at the end of my rope here, so any help you all can give would be greatly appreciated.