I don't see other reported incidents for the Netflix app that you are encountering. A search for the error you're getting leads to Netflix Help Center, which suggests restarting the device. You can also try the Reset Netflix option. If the error persists, then please PM us so we can submit a ticket for you.
@Biollw APPS-04154 is just the generic error for an app not being able to load. You'll also see it if you try to load the currently unreleased DAZN app. (Issue the "Da zone" voice command.) However, this should not be happening with Netflix. If power cycling your modem followed by your STBs doesn't fix it, try doing a "System Refresh" and then, if necessary, try "Reset Netflix". (These are both in Settings > Help)
Netflix works fine for me. As for my issues with some apps not loading/not working properly, this is looking more and more like a problem that I reported a few months ago that never really got resolved by tech support.
@Ddeveau Netflix is working fine for me. The Netflix support page says that you should be able to fix this by rebooting the Ignite set-top box. I presume that you have already tried to do this countless times.
If that does not work, try to reset the Netflix app. Press the "A" button on your remote to access the Help screen, then press the right arrow to get to "Reset Netflix". After you do this, you will need to log into Netflix again.
If that still does not work, try rebooting your Ignite modem by power-cycling it. Wait for the modem's status LED to turn solid white, then reboot your Ignite set-top box.