Duet 2 WiFi no reconnect during print job



  • Hi there,

    after having a problem with lost connections, fixed by installing an additional ethernet bridged repeater in the same room where my printer is currently located i noticed that the duet wifi does not attempt to reconnect to the AP while a print job is running.
    I did some adjustments to the network configuration on my routers VPN service and had to do a restart
    which led to a connection loss of all WiFi connected clients, after that only the duet did not come online again.
    Is there a pre-configured number of unsuccessfull connection attemps after which the duet stops trying to connect ?



  • Have you increased the number of AJAX attempts? It's on the Settings page of the DWC, I think on either the first or second tab. I even had the occasional issue with my Ethernet dropping and not reconnecting, but bumping up to 3 or 5 or so AJAX attempts resolved it.



  • What firmware and DWC versions are you using? The reconnection behaviour was improved recently.



  • Firmware Electronics: Duet WiFi 1.02 or later
    Firmware Version: 2.01(RTOS) (2018-07-26b2)
    WiFi Server Version: 1.21
    Web Interface Version: 1.22.5

    However please note there is no problem with connection stability, the last time a connection loss occured was forced by me. my router takes ~5 minutes to reboot and accept connections again, after that time the Duet didn't even attempt to connect again and the WiFi module's LED indicator wasn't blinking or permanently on.



  • I believe there is a time out after which it won't try to reconnect anymore. 5 minutes is quite long for a router boot. If you have a paneldue you could manually cye the wifi module to reconnect.



  • I have a paneldue but have not found out how to reconnect with it.
    Yes 5 minutes is quite long and i dont reboot my network on a regular basis 🙂 It was just an unlucky cirumstance as the print was really long and i wanted to check it on my phone while i am out of house.



  • M552 S0 to disable networking followed by M552 S1 to re-enable it.

    You can make a macro with those commands to make it easier in the future. It does come in handy occasionally.


  • administrators

    Try upgrading to firmware 2.02RC6. If the WiFi module loses the connection with your access point it will retry continuously, instead of just twice as in 2.01.



  • Sounds great, will give it a try 🙂


 

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