Nokia C3-01 - Internet connection fails, how can i change the access point for Nokia messaging (email,Chat) on my Nokia phone (S40)?

Select Menu > Settings > Configuration > Preferred access point;

Choose your operator access point.

 

Note: Access point name  is used to identify a general packet radio service (GPRS) bearer service in the GSM mobile network.  The Access point name defines the type of service that is provided in the packet data connection.: