Q: my iphone safari won't open

Hi mercurymax,

Welcome to the Support Communities!

The article below may be able to help you troubleshoot your Wi-Fi issue.

iOS: Troubleshooting Wi-Fi networks and connections

http://support.apple.com/kb/TS1398?viewlocale=en_US

Reset network settings by tapping Settings > General > Reset > Reset Network Settings.

 

Note: This will reset all network settings including previously connected Wi-Fi networks and passwords

iOS and OS X: Recommended settings for Wi-Fi routers and access points

http://support.apple.com/kb/HT4199

I hope this information helps ....

- Judy