If P8AUTH/RADIUS is not seeing Access-Request packets, this will result in the MSISDN failing to connect.
There are a few steps that you can take to troubleshoot a simcard not connecting, these steps are:
- Ensure that the device is configured with the correct settings for the APN the sim card is provisioned to.
- Confirm the device is not faulty by using another simcard ,that is provisioned on the same APN, to see if a connection is made. If a connection is made, proceed to next step.
- Confirm that the simcard is not faulty by using it in another device, that has the same APN settings. If a connection is made, proceed to next step.
- Check with the mobile provider to ensure that the MSISDN is provisioned in the correct APN.