Can't access internet via Wifi after unlocked!

The blackra1n program is notorious for having issues with wifi. But it's supposed to have been just recently rewritten to fix that problem. Try erasing all your network settings in your iPhone. If that doesn't fix it (and it never did for me), download Push Fix from Cydia or Rock. I've had better luck with Push Fix but after restoring my iPhone with the most recent version of blackra1n, I've never had much of the wifi problem anymore.

 

Try these steps:

1. Back up your phone in iTunes

2. Restore your phone in iTunes, to factory settings, re-enter your wifi settings and test that wifi works.

3. Turn on Airplane mode, run Blackra1n and Sn0w again. Restart your phone, turn wifi on, and see if it still works. Turn off Airplane mode.

4. Restore from your backup if you need to, test your wifi again.