iPad Internet Problems:

No Wi-Fi network:

• Locate WiFi networks in your area – Go to Settings > Wi-Fi
  screen. If there are no networks, then maybe there is no Wi-fi
  coverage where you are.
  
• You might be ouside the range of the Wi-Fi router or hotspot. Move
  closer to the router, try getting a clear line of sight.
  
• Verify Wi-Fi router is turned on, because sometimes it really is that simple.
  
• Check the internet cable is plugged into the Wi-Fi router. Loose
  cables are a very common problem.
  
• Private networks may not show up. Go to Settings > Wi-Fi > Other
  and enter the Wi-Fi network name, security, and password to
  connect.

iPad not connecting to Wi-Fi network/Internet not working:

• Locate the correct Wi-Fi network. Often there are multiple
  Wi-Fi networks available and you need to choose thee right one for
  optimum internet speed and connectivity.
  
• Coffee shops, airports, internet cafes etc. generally don’t offer
  a free Wi-Fi network. To access internet on such subscription wifi
  networks, you need to ask them for the relevant information.
  
• Configure network-specific settings – like IP address, DNS, and
  Search Domain settings. Maybe someone tampered with your iPad
  settings.
  
• Use “Renew Lease” to acquire new IP address, DNS, and Search
  Domain information from the Wi-Fi network.
  
• Turn off iPad – then restart. tI might automatically fix itself.
  
• Turn the Wi-Fi router off and then on again. It might just need a reset.
  
• Disable wireless encryption/security on the Wi-Fi router - if it
  works this means there are encryption issues. Change the security
  protocol and try again.
  
• Reset your network settings – Go to Settings > General > Reset >
  Reset Network Settings.
  
• Configure your Wi-Fi router to use a single WEP key.
  
• If none of these work, turn off the Wi-Fi and use the mobile data
  plan – that will at least work if you've got a data plan.

Dropped/Fluctuating/Weak iPad Wi-Fi Signal:

• Move closer to the Wi-Fi router signal. Get a clear line of sight.
  
• Reduce active Bluetooth wireless devices near your iPad.
  
• Change channels on your wireless network to use 2.4 and 5GHz
  channels with the least interference.
  
• Reduce interefence by mobile phones, cordless phones, metals,
  power lines, microwave ovens, wireless speakers, other wireless
  devices including AirPort and Bluetooth devices.
  
• Remove iPad from cover, remove any attachments that might be
  intefering.

iPad not automatically connecting to a known Wi-Fi network:

• Create separate Wi-Fi network names to identify each band
  (for Wi-Fi routers that are dual-band capable). Add some characters to
  the current network name. Example: Add a G to the 802.11b/g network
  name and an N to the 802.11n network name. (source)
  
• In third-party Wi-Fi routers that are dual-band capable, ensure
  that both networks use the same security type (WEP, WPA, WPA2 etc.)
  
• Reset your network settings – Go to Settings > General > Reset >
  Reset Network Settings. This will reset all network settings,
  including passwords, VPN, and APN settings.
  
• Update Wi-Fi router for firmware or software updates.

iPad app doesn't work anymore (not updated
iOS and running a higher version than 4.3.3 iOS)

• Restart the OGame App
  1. First try to close the app
     using the multi-task screen (double-tap on the home button).
  2. You
     will see a list of apps close them all.
  3. Now try to open the OGame
     app again.
  Does it work? If yes, great you're done. If not:
  
• Reinstall the iPad app (this removes all app data and
  cache)

Didn't work? Contact the OGame team.


iPad app didn't work after
installation:

1. Check if your iPad is jailbroke because the OGame app
   won't work in this instance. (JAILBREAK = NO SUPPORT)
   If not:
   
2. Look if you've got at least iOS 5 if not try to update your iOS.
   If that's not the case:
   
3. Reinstall the iPad app again