Yes you can but it’s limited to the following devices. WE826-T2 WE826-Q WE1326 WE3526 If you are bringing your own device and its one of the supported models above please contact us to confirm that the modem inside the device is also compatible.
The default password to the WIFI is: internet2go
Yes you can attached a MIMO type antenna to the router. Just remove the paddle style antennas and connect your external antennas to the same terminals. The antenna cable should have a SMA male end to work correctly with the router.