Go to Setup then Maintenance then System in the left-hand column of options. There's a "Reboot the Device" button. Click on that button and in the device will come back up in a few minutes. I'd click on the Save Configuration first though so you don't lose your config.
If it's a router problem then I'm sure there is a remote management option to reboot that as well.
Perhaps to clean things up you first do a router reboot, then in the camera you save the 932L configuration, then reboot the 932L.
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