I have an R11eL-EC200A-EU LTE modem that I tested on diferent board types RB411U, RBM33G, RB411UAHR and RB912R-2nD. The main problem is that the modem despited being registered and gained automatic ip on LTE Interface I cant ping it from my client to the modem. The modem has a SIM Card that is configured for an specific private APN(Access Point Name).
If I ping from 192.168.142.150 to anywhere , my client starts pinging the LTE Device(192.168.142.150) but if I stop pinging from lte then my client also stops pinging the LTE device.
I tested on firmware versions 7.2.1 , 7.12.1 and 7.14.3 but the problem persist. I also tried upgrading the modem firmware but I wont upgrade even on home network.
Router configuration:
/interface lte
A newer version of modem firmware is available!
set [ find default-name=lte1 ] allow-roaming=no band="" mtu=1480 sms-read=no
/interface lte apn
set [ find default=yes ] add-default-route=no apn=privateapn ip-type=ipv4
use-network-apn=no use-peer-dns=no
/interface lte settings
set sim-slot=up
/ip address
add address=192.168.142.150/24 interface=ether1 network=192.168.142.0
/ip route
add disabled=no distance=1 dst-address=0.0.0.0/0 gateway=lte1 pref-src=
192.168.142.150 routing-table=main scope=30 suppress-hw-offload=no
target-scope=10
/ip ssh
set forwarding-enabled=remote