EXFO FTB-500 - Manual (Page 304)

Troubleshooting
296 FTB-500
Solving Common Problems
The 3G USB modem key is
connected, but I am not
able to access the Internet.
There is no SIM card in the
USB modem key.
Insert the SIM card into the
USB modem key. For
complete instructions, refer
to the documentation that
came with your modem key.
The USB modem key is not
detected properly.
Disconnect the modem key
from your unit, and try
connecting it again.
If the modem key is still not
detected, try connecting it to
another USB port.
The SIM card has not been
activated or there is a
problem with service
package that you
purchased.
Contact your provider of
mobile services.
There is a problem with the
mobile network.
Contact your provider of
mobile services.
Problem Possible Cause Solution