And what kinda speeds are you getting? Is this the antenna you are using? Eightwood 4G Antenna 35dbi SMA Male Adapter Omni Directional Antenna 2m 6.5ft Cable + 2pcs SMA Jack Female to TS9 Plug Male...

@Fl1nst0ne out of interest what speeds were you getting before the external antenna? Was there any setting to change to tell it to use an external?

@Murt I've checked the app (and webpage) for the MR600 and I can't find anywhere where it allows you to change the antennas to external. Also the manual doesn't mention anything about the setting. I...