At Command Access - Digi 6350-SR User Manual

Troubleshooting

AT command access

To gain AT command access through the Digi 6350-SR/6355-SR, the tester must have a PC/laptop
connected to one of the LAN Ethernet ports of the Digi 6350-SR/6355-SR. They should receive an IP
address via DHCP from the Digi 6350-SR/6355-SR in the 192.168.0.100-250 range. If they do not
receive a DHCP address, they can configure a static IP on the PC/laptop of 192.168.0.2/24 with a
gateway of 192.168.0.1
1. Open a SSH session to the Digi 6350-SR/6355-SR.
2. Log into the device console as a user with admin access.
Depending on the device configuration, you may be presented with an additional menu. Type a
for the Admin CLI.
Digi 6350-SR/6355-SR LTE Router User Guide
If no, verify Ethernet ports for connection status and check
n
Cat5/ Cat6 cable integrity. Is IP Passthrough mode enabled?
If yes, clear DHCP leases by waiting 5 minutes, then reboot
l
the unit. If clearing DHCP leases didn't fix issue, check that
the passthrough IP works with a /30 subnet. If not, contact
carrier to change IP on SIM card (may just need a reboot if
using a standard APN).
If no, verify the Network → Interfaces→ LAN section of the
l
config is set up with a static IP and the DHCP server is
enabled.
Online but with VPN issues
Reduce the Modem > MTU option in the configuration to 1400.
Alternately, if you have control of the router connected to the Ethernet
port of the Digi 6350-SR/6355-SR, change that router's WAN MTU seting
to 1400.
Briefly online
1. Disconnect Ethernet cable from the Digi 6350-SR/6355-SR;
power cycle. Wait for the Digi 6350-SR/6355-SR to fully connect,
then reconnect Ethernet port.
2. Verify the Digi 6350-SR/6355-SR is using the correct APN (e.g. on
Verizon you can connect with the standard vzwinternet APN, but
the SIM card is meant to connect with a static APN such as
ne01.vzwstatic).
3. If that didn't fix the issue, try removing the 192.168.210.254 IP
address from the Network > Interfaces > Default IP > Default
Gateway option in the config.
4. If that didn't fix the issue, try disabling any/all connectivity tests
in the configuration profile (labelled "ping monitoring" or
"connectivity monitoring" in the config).
5. If that didn't fix the issue, contact the cellular provider to check
the SIM card's activation and provisioning status.

AT command access

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