Stuck on centering, homing or scanning

Hi there. For about the last hour or more my GF Pro keeps getting hung up in either Centering, Homing or Scanning FOREVER until it says Print Canceled and to refresh and reboot - which I have done several times now and it continues to be an issue. According to the Community it best to have you look at the logs to see what’s going on. Thanks for your help.

Here are some troubleshooting steps to try until Support can get here to help out:

If nothing in that article helps, next step is to work on your wifi signal:

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Hello @kim6,

I took a look at the logs for your unit and it looks like your Glowforge is able to connect successfully to your network, but is having trouble maintaining a stable connection. When this is the case, you won’t need to go through Wi-Fi setup again, but you may see an “Offline” message.

I’ve extracted some data from the last few days of use in order to investigate further. In these logs we have a record of the average signal strength the Glowforge is capturing from the network it’s connected to. On average, this signal strength has been low over the last week, with average strength at around -77dBm as of today. For more context, on networks with very good signal strength, this will often run closer to -30dBm. A signal strength at -70dBm or lower would be very difficult to stay connected to.

The most common solution to Wi-Fi challenges is to restart all the devices involved in connecting to the internet.

  1. Turn off the computer, phone, or tablet that you’re using
  2. Turn off your Glowforge
  3. Unplug your modem
  4. Unplug your Wi-Fi access point
  5. Wait one minute, then plug everything back in and turn them back on

If that doesn’t work, we have two more suggestions that often make a big difference:

  1. Improve the signal path between your Glowforge and your Wi-Fi access point
    Wi-Fi signals need a clear path. Remove physical barriers, and move devices closer together:
  • Move your Wi-Fi access point up high and make sure it’s in an open space. Avoid locating your Wi-Fi access point on the ground, under a desk, in a cabinet, or in a corner where its signal can be blocked.
  • Relocate your Wi-Fi access point closer to your Glowforge
  • Move your Glowforge closer to your Wi-Fi access point
  • Install a Wi-Fi range extender closer to your Glowforge
  • Run an ethernet cable and install a second Wi-Fi access point next to your Glowforge
  1. Reduce electronic and Wi-Fi interference
    If your unit is near other devices that use Wi-Fi or a large number of electronics, temporarily turn off other electronics and devices in the area.

I hope this helps. Please let us know how it goes. Thank you!

Hi @kim6, it’s been a few days since we heard from you so I wanted to check in and see how things are going. I just took a quick look at your Glowforge logs and see that you’ve been able to successfully print the last few days, that’s great! I also see that your WIFI signal strength is a bit better. Could you please let me know if you’re still having connectivity trouble? Thank you!

Yes things are much better. I got a WiFi extender and that did the trick.

Thanks for checking in.


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@kim6, That is great news! Thank you for letting me know.

Please don’t hesitate to reach out again should you need anything. We’re happy to help!