Hi Dave, while I can’t answer your answer , can u be so kind and give me some steps on how you setup the ES450 to connect to via a Raritian Dominion SX2 ? I’m using a LX-60 to try to attempt to do this but not working. I have the SIM provisioned and l want to do his to go via the LX-60 USB to hop onto the Raritan so I can ssh to it… Almost like using the a dialup line. I can get only the LX-60’s ACE manager page from over the LTE but that’s it… Can never past to the Raritan. I tried the 3 USB ports on the back and the single one in the front of the Raritan. nothing work. the main thing I did for the LX-60 was set the security section to be ‘automatic’ for ‘dmz host enabled’. Also created the ‘modem group’ in Raritan as per documentation… I have told by Sierria the Lx-60 is the new model of the ES450 so was hoping it can work. Any help will be appreciated.