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12. Troubleshooting
No connectivity
• Is the Ethernet Injector LED lit? If not then there is a power problem.
• Verify the wiring to the 12v source
• Power cables connected properly
• If using an external power supply, verify that the power supply was provided by
Airgain
• If using a cigarette lighter power source, check the CLA fuse
• If none of the above result in the EI powering on, contact Airgain support
• Is the Ethernet Injector LED flashing red?
• If you are using power supply other than the one provided by Airgain, check
that the it is capable of providing 12V and at least 3 amps.
• Do not use the 4 pin power cable from a router
• Check that the SIM card is activated with AT&T. Contact your AT&T sales con-
sultant.
• Verify that the USB cables are plugged into the correct ports (needs pictures)
• Is your FW version older than 2.3.x? If so contact Airgain support
• Power cycling the EI may restore the connection
• If none of the above resolve the issue, contact Airgain support
• Is the Ethernet Injector LED solid red?
• Open user interface, check the modem status, look for ICCID. If unknown, then
there is a SIM card detection problem.
• Only use the SIM card supplied with the AGC. It is industrial rated and the
only approved card to be used with AGC
• Reseat the SIM card, power cycle the AGC setup, check user interface
again to see if ICCID is populated under modem status.
• Contact Airgain support