Posts: 1
Joined: Sat May 30, 2020 5:36 am

Ender 3 Pro can't communicate?

Sat May 30, 2020 5:41 am

I bought the software specifically to help me get my Z offset correct.

I've connected the USB cable to the PC (in the same port I use to successfully write G-Code to the SD Card) and it won't connect.

I've tried various BAUD rates, to no avail, and I don't know what to try next.

Connection log messages below:

Code: Select all

Attempting connection at \\.\COM1...
  Testing plaintext communication protocol...
  Testing binary communication protocol...
  Testing alternate communication protocols...
  Connection failed.

Posts: 1
Joined: Thu Apr 22, 2021 12:40 am

Re: Ender 3 Pro can't communicate?

Thu Apr 22, 2021 12:43 am

Same problem here. Did you find any solution? Does not seem to matter the baud rate, and I only have one COM port open COM1.

Posts: 1
Joined: Sat May 01, 2021 9:36 am

Re: Ender 3 Pro can't communicate?

Sat May 01, 2021 9:39 am

the printer emulate a com port, so their is nearly no chance that it is on com1.
The com 1 is your motherboard onboard com, even if you dont have the bracket for it.check in your device manager and you will probably find a com 3 or a com 5, that will be the good one.

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