Cambium Networks cnWave 5G Fixed, Руководство по эксплуатации и устранению неисправностей

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General Troubleshooting Procedures 66
4. If the Ethernet cable connects the radio to a hub, switch, or router, verify that the cable is pinned
out as a crossover cable.
5. Verify that the Ethernet port, to which the cable connects the radio, is set to auto-negotiate speed.
6. Verify the VLAN configuration in the network, which may cause loss of radio access if the access
(of a device) is on a separate VLAN from the radio.
7. Power cycle the radio module.
Approximately 60 seconds after the power cycle, the Dashboard UI page must indicate that the
link has been established. If the EVM doesn’t stabilize at around -25 dBm or the Dashboard page
shows scanning, then the radio is in the alignment mode due to the radio module's failure to
establish the link.
8. If the radio has encountered no customer-inflicted damage, then request an RMA for the radio
module.
Troubleshooting when CPE fails to register with a BTS
When a CPE fails to register with a BTS, perform the following steps:
1. If Radius is used, verify that the Radius Server is enabled on the BTS.
2. Verify that the Radius Server is running and responding to a Ping to its IP address.
3. Verify that IMSI of the CPE is configured in the Radius Server's
Authorize
file.
4. Verify that the BTS shows the connection possibilities to the CPE, but the authentication fails.
5. Verify that the CPE has the correct certificate.
6. Power cycle the radio module.
Approximately 60 seconds after the power cycle, the Dashboard UI page must indicate that the
link has been established. If the module's dashboard shows that CPE is not registered after few
minutes, the BTS shows that the authentication still failed to complete.
7. Run the Radius Server in Debug mode and note any errors displayed when the CPE is attempting
authentication.
8. Report the error and act accordingly. Otherwise, request an RMA for the radio module.
How to troubleshoot BTS?
If a BTS is faulty at a deployment site, then all the customers in the sector will experience a loss of service
until the BTS is fixed or replaced (in some cases). This operation can take several minutes or hours due to
the physical installation process.
A simple diagram of a BTS installation is shown in Figure 51 and following the steps above, we want to
diagnose and eliminate any cabling issues.
A simple ping process can be used to test the connectivity to the BTS. For more detailed
troubleshooting, an ohmmeter can be used to measure cable resistance values in case there is
connectivity to the BTS, but data errors are observed.