Safari collapse

Try a reset: Simultaneously hold down the Home and On buttons until the device shuts down. Ignore the off slider if it appears. Once shut down is complete, if it doesn't restart on it own, turn the device back on using the On button. In some cases it also helps to double click the Home button and close all apps BEFORE doing the reset.

reset all settings

settings-general-reset-reset all settings

now reconnect to wifi

settings- wifi- click network name- enter password - join

if issue persists back up and restore as new via iTunes

Peace, Clyde