i have same problem.
i get this errors : Failed to send OID 0xff100012 to driver. Error - 21, Failed to send OID 0xff100055 to driver. Error - 31
and i dont know what to do anymore
If reinstalling the drivers from scratch to version 15.1.0 did not fix this, taking the laptop for warranty seems to be the best option. The ramdom disconnecting within short periods of time and the failure to load the driver correctly can show a hardware failure, specially if it worked before.
Just in case, the latest drivers we offer can be found at the following link:Intel® PROSet/Wireless Software and Drivers for Windows 7*, version 15.1.0
We would also recommend escalating this inquiry with the computer manufacturer directly.