So I was desperate to get LTE connection to my RB751, tried with the AC 313U (another post) but without success, so I got the LTE wireless hotspot - Sierra Wireless AirCard® 754S. Tethering the RB751 via wifi to it of course works, but to my big surprise, AC754S which has USB port that provides USB tethering and is used for charging, got recognized just as Sierra Wireless modem and all. ppp adapter info can read card status, even indicates “Evolved 3G” when hotspot is connected to the LTE network here. But I couldn’t get it to connect at all. Tried all combinations info/data channel (which can each be from 0 to 3), to no avail. And worse of all - once I try to activate the PPP connection from ROS, hotspot gets really messed up and I have to hard reset it to get it working properly again. Any suggestions what can I try beside playing with info and data channels?
I would try a bit further than 3, discovered that my Sierra card user 4 and 3 a while back.
http://forum.mikrotik.com/t/sierra-wireless-mc8790-and-rb411u-rb411uahr-success/46890/1
I didn’t understand how this usb card did anything to your hotspot on your mikrotik?
And disable the SIM code, if there is one, i always seems to make my day.
754S is a hotspot itself. It can tether up to 5 devices via wifi, but also has USB port where you can do USB tethering. When I tether mikrotik to wifi hotspot it works, but is far from efficient.
When I try to use the 754S via USB tethering - it gets recognized by the router, but if I enable the ppp interface, it messes up the configuration of the LTE hotspot (the 754S device) and it requires hard reset (of the AC 754S) to get it working normally again.
Channels beyond 3 give error when I try to enable apply them. Only accepts values between 0 and 3 on both fields.
I just bought an RB750UP and am trying to connect a 754S to it via USB. MT doesn’t seem to support this properly.
It’s a multi-mode device, and my understanding is that the best performance can be achieved using it in network mode (“direct IP”). I know from using it on current popular Linux distros (e.g. Ubuntu) that Linux includes the driver (sierra_net) needed and it shows up as “wwan0”.
When I plug it into RB750UP only driver I see is “sierra”. On regular Linux that would correspond to serial (PPP) driver, assuming names are the same.
Does anyone know why MT doesn’t support/include the “sierra_net” driver, or something equivalent so that the 754S shows up as a network device?
Thanks!