Troubleshooting
LTE troubleshooting tree
Digi 6350-SR/6355-SR LTE Router User Guide
54
Solid Blue
4G connectivity confirmed
Test for Internet access on the device connected to the Digi 6350-
SR/6355-SR.
Online
Does the device has a usable IP Address?
n
If no
, see if the client device is expecting a publicly reachable
and/or static IP address, check the SIM card and the Modem
section of the configuration to verify both are set up with the
proper APN.
Are there any ports that are required but cannot be accessed on
the client device?
Also check if the IP Passthrough has been enabled.
n
If yes
, check the Services section of the configuration. Verify
none of the services are reserving the ports needed to access
the client device.
n
If no
, check the
Firewall -> Port Forwarding
section of the
configuration. Verify that the desired ports are forwarded to the
appropriate IP addresses.
Offline
Is the client device receiving a DHCP address from the Digi 6350-
SR/6355-SR?
n
If yes
, check if the IP Passthrough has been enabled.
l
If yes,
are there any ports that are required but cannot be
accessed on the client device? Also check if the IP
Passthrough has been enabled.
o
If yes, check the
Services
section of the configuration.
Verify none of the services are reserving the ports needed
to access the client device.
o
If no, check the
Firewall -> Port Forwarding
section of
the configuration. Verify that the desired ports are
forwarded to the appropriate IP addresses.
l
If no
, see if the client device is expecting a publicly
reachable and/or static IP address, check the SIM card and
the Modem section of the configuration to verify both are
set up with the proper APN.
