Bug 459713

SUMMARY
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When trying to set up my school wireless via plasma-nm, no matter what I did, I couldn't connect to my school's wireless. It turns out that I had gotten the network domain incorrect. I wasn't able to figure this out however, until I tried to connect while journalctl was running and shot out an error, as plasma-nm would not present errors to me that would actually be able to aid me in resolving my network issue. So it would be great if plasma-nm would either have the capability to show more errors than just whether your password was wrong, or a more generic error saying that it couldn't connect. Instead, I think it should also be able to tell you whether your domain is wrong when connecting to a WPA2 enterprise network for example, or that you are using the incorrect type of WPA2 security for your enterprise connection. I am pretty sure these are all things that would most likely show errors in journalctl if you got them incorrect, so it would be great if plasma-nm's gui could display them as well. And if it can't, at least get plasma-nm to display all the errors regarding your network in a nice list, so you can at least get a hint at what is wrong. 
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ISSUE:
Plasma-nm's errors are not good enough to be helpful for more than just an incorrect network password.

EXPECTED RESULT
For plasma-nm to have the ability to display a wide range of errors for most connection issues that arise. 

SOFTWARE/OS VERSIONS
 

Linux/KDE Plasma: OpenSUSE Tumbleweed 
(available in About System)
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.5