Hi everyone,

I'm currently having issues trying to get a Huawei ME909u-521 LTE card working in a RB953. Previously, it was working in RouterOS 6.38, but I recently upgraded to ROS 6.42.1 (current stable).

I'm not 100% sure whether it was the upgrade that broke the functionality, since my device was switched off for a number of months and not used.
I've tried resetting the configuration back to defaults, and followed the instructions at https://wiki.mikrotik.com/wiki/Manual:Interface/LTE
The LTE card itself is detected, and a scan shows a number of available networks. It just cannot seem to connect to one.

I've also tried the following:
- Installed the extra LTE package
- Setup the PPP interface
- Setup the DHCP client for LTE interface
- Configured the APN correctly
- Installed the LTE card in both mini PCIe slots
- Used the SIM in my phone, to verify that there is service
- I've also tried moving the routerboard around, and moved the antennas to get a clean signal

I'm at a loss at what is going wrong. Anyone had similar issues, or suggestions of what to try next?

The log repeatedly shows:

ppp-out1: initializing modem...
ppp-out1: dialing out...
lte1: sent AT+CSQ
lte1: rcvd +CSQ: 16,99

For anyone who has the same issue, I had to add the following modem init string to the LTE interface configuration:

AT^SYSCFGEX="00",3FFFFFFF,1,1,7FFFFFFFFFFFFFFF,,

Thanks to the guide found here: https://bearmetal.eu/theden/lte-roaming ... ik-huawei/

After adding that, it seems to work fine.

Hi,

Do you have it working with ros 6.43 ?

I have conection, i can ping, resolve hostnames but no browsing or other traffic going on.


Thanks