Driver problem?

My prusa doesn't connect with either of my computers anymore. I used to use repitier to connect but neither it or cura works on multiple computers now. I can print fine from SD so im wondering how I can get computer connection back. My z axis needs to be at like 160% so all my SD prints are too short! Has anyone run into this before?

Why 160? Are your steps per mm wrong or you need to scale the part. Fix the firmware if the steps are wrong using the prusa calculator and print from SD. It's more reliable anyway.

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Prusa i3 Rework - Ramps 1.4 - E3d Lite6 - Full Graphic LCD Controller

I am having a similar issue. Any resolution about the connection problem?

One possible explanation:

[hackaday.com]

The latest windows driver no longer bricks clone FTDI chips, but does detect its a clone and will not fuction..

People are reporting "The Arduino IDE's serial monitor reports: "NON GENUINE DEVICE FOUND" printed over and over again! "

You need to roll the driver back to a pre nasty version..
or run linux
or plug your controller into a raspberry pi running octoprint (so windows can't see the FTDI chip)
or get a non clone FTDI chip (though after all FTDI's nastiness I advise using a ch340 or alternative usb to serial converter.)