Yes! You are exactly correct elmoret. BINGO! "Important! On a CoreXY machine, if upgrading from a version prior to 1.19beta9, you need to reverse the Y motor direction in the M569 command. Similarly for CoreXYU machines."

Would this change have occurred in my config.g? Can't understand that.

I'm not tremendously knowledgable about everything Duet Wifi elmoret. How do I access the changelog and reverse whatever happened. Thanks.

After successfully updating from 1.18.1 to 1.19 today I opened DWC in order to start a print and after beginning some homing moves, I immediately recognize that my movements are mirrored. X movements are going in the Y direction and Y movements in the X. Z seems normal. Baffling. Any help is appreciated. Thanks in advance.

Wow. Now that I've successfully updated, I open DWC and start the process to begin a print and bam, my x and y axes are wacko. X+ direction arrow moves Y and vice versa. Z axis movement is still correct

Thanks dc42! I'm back in business. Yes, I wasn't being patient!

I sent M997 S1 first and it was successful, but when I send M997 S0 next, I get another error message…...... SENDING:M997 S0
[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 22] The device does not recognize the command.)

Also, every time I have a failed attempt at uploading, the DuetWifiFirmware.bin disappears fron the sys folder on the sd. ??

Dc42, still working on upgrading from 1.18.1 to 1.19. Here's where I'm at. I've put the DuetWifiFirmware.bin on the sd, along with DuetWifiServer.bin. I created the required macro and put it in a folder called SetNetwork within the macros file. Lastly, I created a www folder in the main sd section and placed DuetWebControl.zip inside it. Also commented out M552 S1 in the config.g. When I send M997 S0:1, here's what I see.>>> M997 S0:1
SENDING:M997 S0:1
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 22] The device does not recognize the command.)
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 22] The device does not recognize the command.)
[ERROR] Disconnecting after 4 failed writes.
Disconnected.

I could really use some help! Thanks in advance.

Was attempting to update my firmware( I've been running 1.18.1) and the wifi server, and I accidentally updated the wifi server first and now I've lost communiction and can't update the firmware. Someone help me please.

My issues have been resolved. It was a browser issue.