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Wednesday, July 13, 2011

Sim Card Error - APN is incorrect

This happened to me recently when using a USB wireless broadband card, every time I would try and connect it would either drop out , fail to find a signal or give me the error APN is incorrect

which basically means its not sure what network the SIM is on , for example my sim card was coming up with the Access Point Name as 3Telstra

this can be an issue especially when carriers share network lines and some people have said it has messed around with their billing a bit. If you are connecting via a basic windows system you can change your apn settings under

To change mobile broadband connection profile properties (APN, access string, user name, password, and autoconnect settings)

  1. Open Connect to a Network by clicking the network icon (Picture of the wireless network icon or Picture of the wired network icon) in the notification area.

  2. Right-click your mobile broadband network, click Properties, and then click the Profile tab.

You will need to give your service provider a call to obtain the access point name but once you have entered it you shouldn't have any trouble. generally the apn is serviceprovider.internet


  1. Thank you for this. It's very rare to Google an issue and find the solution with the first click.

  2. Thank you, spoke to 2 different service desks who didn't help and told me I would have to go to one of our offices and connect to the network to fix it, but I tried this and it worked.