Lenovo — Driver state failure

Address:

Junagadh, Gujarat, 362630

So i bought a lenovo thinkpad for college, it's a pretty great laptop so far, but i've been having issues a few issues.

1.) randomly my connection to wireless will just drop, and when i troubleshoot, it simply says to reset the router. This doesn't work because i can't reset my school's router. Rebooting doesn't work either, i end up system restoring to a previous point and my connection all the sudden is perfect again. What is the cause and how can i fix this?

2.) laptop will take a very long time powering down, and then will say windows did not shut down properly last time. So i used bluescreenview to check the dump files and they all say driver power state failure. It hasn't crashed for any other reason. As for the details on the dump files, all i have is the info that bluescreenview shows which i can provide if needed.