Duet WiFI 1.19.2 from 1.18 upgrade - DWC won't connect

mhackney

David, I followed the upgrade docs to the letter and all went well. I checked firmware version wth M115 and see 1.19.2. I then did M552 S0 and wifi module started. Ran my SetNetwork macro followed by M587 and see my network. I then run M552 S1 and get:

Wifi module is connected to access point "OBFUSCATED", IP address "OBFUSCATED"

So at this point, everything is good. This is where things get odd…

I open a browser and open the DWC via the IP address reported above. The DWC loads and attempts to connect to the printer and fails. After that, it won't load again.
I have to reset the Duet WiFi and go through the M98, M552 again to get back to this point. I actually seen DWC connect twice but then immediately disconnect back to this state that needs to be reset.

I'm in that state now. If I run M552 Sq I get the correct:
Wifi module is connected to access point "OBFUSCATED", IP address "OBFUSCATED"

and M587 shows my remembered network but I can't load DWC.

Any suggestions or any debugging info I can provide?

thanks,
Michael

Dougal1957

did you copy all the DWC Files to a folder under root called WWW easy to miss that bit

mhackney

Yes I did and the fact that it actually displays the DWC interface confirms that.

But, I seem to be working now. I removed and reformatted the SD card and rebuilt it from scratch. I then went through the upgrade procedure and this time, the DWC connects to Duet and stays connected.

Case closed but I don't understand what the initial problem was.

Dougal1957

Michael sorry didn't spot it was you but? David does also advise to delete the existing WWW Folder Which I am sure you followed anyway glad your sorted now

mhackney

Ok, just to close this out here…

I believe I had several unrelated issues that compounded diagnosing this but I seem to be very stable now.

I was running at 64 microsteps with a resulting MaxReps: 411 (M122) which David said is too high. This contributes to disconnects while actually printing. I lowered microsteps to 32 and my MaxReps is now 117. I have not had a disconnect during a print since.
A big issue was poor WiFi reception with the Duet in the base of my metal framed D300VS delta. I installed a wifi extender and the signal is MUCH stronger. I still got disconnects during idle but not as frequently.
My Settings->General->Maximum number of AJAX retries was set to 1. I changed that to 3 as per the new "wifi disconnect" wiki. I have not had a disconnect during idle or print for over 48 hours now.

mhackney

A follow up on the follow up - another 2 days without a single disconnect. Looking good!

str8up

A little off topic. Can someone tell me where the gcode files are being saved on SD card 0? It goes through the download process. I have to change directories to something off root before it shows up. Another thing I am seeing is my setting - Temp additions ATX on / off are not there after a restart. I am using 1.19 +3.