Marcus:
Likely not, not sure what the USB port on a given router can do... I assume only shared printer. My old Apple does that and is handled by the printer control panels. What router make and model out of curiosity...
Unless a Windows tablet running Java JMRI can't run there.
Solution as Heiko mentioned is a tablet running virtual connection to PC/Mac/Pi then to NCE. I do that with a simple Android tablet to make adjustments to the Pi running JMRI "headless(faceless)." IE no keyboard/mouse/monitor. Pi comes with VNC server in the full distribution software suite.
Jim Albanowski