There's some huge issues with 17.0. I'm on a Dell 7537 and I used to use 16.6 and 16.10. After 17.0, when sitting my laptop next to router, I received barely 3mbs. On a wired connection, I received 6mb.
As soon as I uninstalled 17.0 and ran the speed test, it jumped up to 5-6mb.
I have no idea how a driver can slow down hardware the way this can.
I'm reinstalling 16.10 to see how that goes.