Fix For Wi-Fi problems with iOS 8
Disable Wi-Fi Networking Services
Many users have reported that they’ve solved their issues by disabling Wi-Fi Networking under Settings > Privacy > Location Services > System Services. This only relates to your location being used for iPhone Wi-Fi Networking, so it doesn’t disable Wi-Fi entirely. Without Wifi, the iPad seem to be pretty useless because you can’t use any online app, check Email and web surfing.
Reset Network Settings
Most networking related issues I’ve experienced have been fixed after resetting network settings. Resetting these settings flushes caches and clears DHCP settings and other networking related info. To reset network settings, open the Settings app and navigate to Settings > General > Reset and tap on Reset Network Settings.
The iPhone drops WiFi connection
First and foremost, make sure that the desired WiFi network signal is strong enough and if not, get closer to the WiFi router and its transmission antenna. Note that the problem might come from the WiFi router or your Internet Service Provider and not from the iPhone. Therefore, be sure that the rest of the devices connected to this network do not experience the same issue.
Tap “Renew Lease”
An iPad saves, or ‘leases’ in this case, the IP address of a network for a certain period of time and sometimes this can cause problems. The IP fortunately can be quickly renewed by clicking the Renew lease button within the networks settings.
https://support.apple.com/en-ca/HT204051
Restore and Setup as new iPhone
Steps on how to reset the network settings on your iPad:
1) Go to Settings
2) Click on General Settings
3) Then go to Reset
4) Click on Reset Network Settings
Hacked Router Fix - WiFi Adware Popup
- Clear the Safari Histroy
- Clear the Cookie
- Clear the Cache
