My connections are not saved. Only my current connection shows up on "Manage Wireless Networks." I've manually added connections many times. Whenever I shutdown and move to a new location all connections get deleted and I have to re-enter passwords to connect even at home. I cannot find a way to save them. I have used command lines to adjust settings; "netsh wlan set" to no avail.
I have had this Dell M4800 workstation (laptop) for 1 yr and 8 months and it has never worked. A long time ago I spent a few hours with Dell support and they could not find the problem. They say it is a Windows 7 problem. Sometimes it drives me nuts. Many of my industrial applications do not work on Windows 8 or 10 so I have not been able to upgrade.
One suggestion on this site that helped someone was to uninstall Dell Wireless 1390 WLAN Mini Card. I do not have this.