Ultimaker 2, inability to connect to Cura/PC

[gonenoculer5 0]

Running Ultimaker 2, prints just fine on SD cards, however cannot use or attempt to use USB printing, due to the fact that Cura does not connect to the printer, i'm using the latest version of Cura, Windows 8 64 bit, anyone got an answer?

[nallath 1,117]

I wouldn't recommend using USB printing. It will only add more points of failure, without giving you extra features.

We officially don't support USB printing for the UM2, so it's not something that gets a lot of attention when testing.

[spepin 1]

Mine shows connected to the printer, and I can control bed preheat through Cura (I don't try printing to it because of the potential for problems though), but my problem is that every time I try to upgrade firmware, the printer reboots and Cura says the upgrade failed due to communications error. Does UM test for that functionality?