Lte 1120 slow. LAN green light flashing

[Ctotton]

My lte modem was working fine up to a couple
Days ago. It became slow. I turn it off and on and had issues connecting then started working no amber light, still slow like can’t to anything slow .
Update firmware and sometime I notice the green lan light is flashing , I think should be solid or off. Tryied different wire and connect direct to another device still flashing. Speed are that slow. .01 up and down.
Think maybe the lan kicking on and off? Since the green light flashing which I am sure never flashed before but I could be wrong

[JohnPeng]

Could you please provide the SKU name of the device and also the FW and PRI versions?

Thanks