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Patrick_B100's avatar
Patrick_B100
Follower
May 28, 2024

LM1200 | Port forwarding on WAN not working

Hi Support,

 

I have recently bought an LM1200 4G LTE Modem. Unfortunately Port forwarding is not working on the WAN interface. On 4G/LTE it's working properly. 

 

We have had contact with support previously and recommended us to return the device and replace it by a new one. Unfortunately, the new device shows the same behaviour. The device is running the latest firmware. 

 

I have attached the backup for further investigation.

 

S/N: 6UL22CW0A16B5 
SKU: LM1200-100EUS
MAC: 3498B56E1C5F

 

Kind regards,

Patrick

1 Reply

  • dflorey's avatar
    dflorey
    Aspirant
    May 14, 2025

    Hi, did you ever get this sorted out?

    I have the opposite problem, I don't use the wired WAN interface, but only the LTE. I do have a static public WAN IP and its registered correctly on the modem, but for the life of me I cannot get ANY port forwarding to work at all!