Troubleshooting LTE troubleshooting tree
Digi EX15 User Guide
62
n If no, verify Ethernet ports for connection status and check
Cat5/ Cat6 cable integrity. Is IP Passthrough mode enabled?
l If yes, clear DHCP leases by waiting 5 minutes, then reboot
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).
l If no, verify the Network ā Interfacesā LAN section of the
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 EX15, change that router's WAN MTU seting to 1400.
Briefly online
1. Disconnect Ethernet cable from the Digi EX15; power cycle. Wait
for the Digi EX15 to fully connect, then reconnect Ethernet port.
2. Verify the Digi EX15 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.
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