I have a 2009 Dell Studio 1555 and I just upgraded from Windows 7 to 10 and It says the driver is updated to the newest one,....I can see the networks I want to connect to but it will never connect, only says "can't connect to this network" no matter which one of our private networks we try to connect. I read that my 5100 agn needs updated drivers to work with 10. When will they come out? Or do I need to go back to Windows 7?
Unfortunately the Intel® WiFi Link 5100 is not supported on Windows*10, therefore, there are no new drivers available expect the ones already available in our https://downloadcenter.intel.com/product/70970/Intel-WiFi-Link-5100 Intel® Download Center - Please, for further information, access this link: http://www.intel.com/support/wireless/wlan/sb/CS-035711.htm?wapkw=intel+wifi+link+5300+and+intel+wifi+link+5100+products Intel® Wi-Fi Products — Which Intel® Wireless Adapters Work With Windows® 10?
It seems like other users found a solution/workaround that resolved an issue similar to that of yours. You might want to check the following thread, in which other users have shared their experience with this situation: look for post # 5. However, we must inform you that the solution provided is not official from Intel and what worked for them may not work for you and if you attempt to follow their procedure, it will be at your own risk.