@mpirringer Hi have checked my connections and tried another cable, I have checked the drivers are up to date. I even loaded Easy print that showed my printer connected tried to print, nothing happened so as you say could be a dry joint on the board
So I have gone back to the seller for help.

@mpirringer
Thank you for your continued support I have tried all the ports on my Hp probook I have tried another usb cable I tried connecting all the ports manually but the printer will not connect an observation when try to connect Com5 I get a motor stutter
I think we are so close to a connection. listed below are allthe port designations I tried.
USB-SERIAL CH340 (COM5) CH 340 Is the printers on board chip
RAMPS (COM3)
RAMPS (COM4)
RAMPS (COM6)
May be I am missing something
thanks

@hamprinter

Hi
Again thank you for your response I eventually found the drop down menu that allowed me to select printer calibration and then the Printer Tab where I managed to change the baud rates so they were the same.
tried to connect to the printer, message came up "oops could not connect to printer ?

@mpirringer
Hi
Thank you for your response the version of MC I have is 2.20.10.10638 I have looked for this tab to change baud rate and I cannot find it might be me I have gone through adding a new printer again still no connection.
my printer Is not in the list may be this is an issue ?

Hi
I am trying to connect a Geeetech i3 pro b Printer to my laptop Windows 10 Mattercontrol it will not connect I think it is a baud rate problem max port baud rate I can set is 125K.
I think Mattercontrol needs 250K to communicate can anyone help