It has been over 9 months since you were made aware of this issue. It has been nearly a year since it first started happening. When can we expect a fix for this? Also you are still pushing out the bad firmware causing this issue. I had mine working fine and not long ago it updated again and all my devices disappeared. Luckily, I had saved my configuration and was able to restore it.
Side note, I have found a way to "fix" it without a factory reset. IF you have your gateway working properly, from the main screen after you login, click "SAVE CURRENT CONFIGURATION" and save the file it lets you download. Keep this file in a location where you can be sure it will be safe. If they push the bad firmware again that stops connected devices from showing... just login to the modem and click on "RESTORE SAVED CONFIGURATION". Browse to your saved file and then click RESTORE. It will reboot the modem and take a few minutes. After it comes back online, all your connected devices will be showing and all configuration changes you had saved previously will be restored.
Sorry that you are having an issue with your business gateway. Backing up the configuration will only backup the settings, it does not back up the firmware. Sounds like there may be an issue with the device or a setting causing this issue. We can take a closer look at this for you if you like.
If you have any questions in the future, please reach out to us, we're here 24/7 for your support! You can also get support on your Comcast Business App or visit https://business.comcast.com/myaccount/. Have a great day!
It's hard to believe that it has been a year since this was first reported and there is still no fix. For a while this summer it seemed to work occasionally but not anymore.
Backing up the device only saves your custom configuration settings, it does not save the firmware or restore to a previous firmware. Firmware cannot be backed up or saved. Let me know if you have questions about your custom configuration.
Hey rtbsoft, this may be of help: https://forums.businesshelp.comcast.com/t5/Equipment-Modems-Gateways/Viewing-connected-devices-on-th... . When there is an update, it would be posted there.