HT201415: If you can't connect to a cellular network or cellular data
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Q: my iphone keeps saying i do not have a data plan
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May 19, 2012 12:50 PMby randers4,Could be a number of things. Assuming that the problem is just with your wi-fi, and it works with other wi-fi networks, start by power-cycling your wireless router (unplug for 30 seconds, the plug back in). If that fails, next thing I would do is see if there is a firware update available for your router. It may also be a problem with your wireless router settings, such as your security setting; the preferred setting is WPA2 Personal (AES). Here are several articles that may help if you still experience problems:
Troubleshooting wifi connections: http://support.apple.com/kb/ts1398
Recommended wifi settings: http://support.apple.com/kb/HT4199
