User Manual

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Appendix B. Troubleshooting
77-0100-003 19 January 2001
Wireless Modems
How can I tell if my CDPD radio is working?
Try the following procedure:
1 From the Start Menu, select Programs, then “Sierra Wireless”, then “Aircard3XX”, then “WirelessExpert”
2 Press the Next Button
3 If you encounter an error message, follow the on screen instructions.
4 Verify or enter the correct NEI (Network IP address) and DNS (Domain Name Server IP address) for your
CDPD network registration
5 Press the Next Button. WirelessExpert then automatically perform a series of tests. If a red X is displayed in any
check box, then an error resulted from that test.
6 If a red X is displayed in the check box next to “Scan for Valid CDPD channel” then your CDPD radio cannot
“hear” the cellular network. You are either out of RF coverage or have a RF performance problem. Check your
RF coverage and antenna position. Press Back to repeat test.
7 If a red X is displayed in the check box next to “Register with CDPD Network” then your CDPD radio failed to
register with the network. Check your CDPD network registration status with your CDPD provider. Press Back to
repeat test
8 If a red X is displayed in the check box next to “Ping the network” then your CDPD radio cannot deliver a packet
to itself through the CDPD network. Check with your CDPD network provider to verify your NEI and DNS are
correct. If your NEI and DNS are correct, you may be at the edge of RF coverage or have a RF performance
problem. Check your RF coverage and antenna position. Press Back to repeat test.
9 If a green check is displayed in all three of the above check boxes, then your CDPD radio is working properly. If
you continue to have CDPD communication problems, check with your application support personnel to investi-
gate your networking and application setup.