@ dreamrider, You seem to have a model closer to mine than the OP - I have had this issue with my RB751G-2HnD for over a year - never got any reply on my previous post: https://forum.mikrotik.com/viewtopic.php?t=107913 I have tried using netinstall myself, to no avail - I cannot get my USB port to s...

Hi there, I seem to have made an error whilst troubleshooting a 3G modem issue. I deleted the USB port from System > Ports via WinBox and since then no USB devices seem to initialise at all when plugged into my RB751G-2HnD. As a result, I no longer have a "usb1" option in my dropdown list ...