I also have no wifi. Hmmmmm.

More details: I get several "not responding" errors:
"Process system is not responding."
"Application Settings (in process com.android.settings) is not responding."
"Activity Wi-Fi settings (in application Settings) is not responding."

If I try to add a wifi network manually, it hangs as I press Save, and then I get another error (eventually, it's slow) until I press Cancel.

Scanning never finds anything.

Wifi has to be turned on every time, and it doesn't seem to do any good.

If I leave it alone for too long (don't have an exact time, I was fixing dinner and chasing my kids) it will simply shut itself down.
Also, everything is slower than cold tar going uphill in the wintertime.