Some time recently, software updates for my MCUX 11.1.0 installation (on Windows 8 Enterprise) stopped working. It nags me every 4 hours about updates, but then when I tell it to install I get a string of "no repository found containing..." error messages. I've tried flushing the resolver cache and I've rebooted. If it's actually making any requests, it's doing it over HTTPS and I can't see what's going wrong with Wireshark.
How do I fix this?