Please allow editing of the 802-1x.subject-match network-manager property form the gui. This is an essential setting that prevents radius-based MitM-attacks. I'd consider it mandatory 802.11x-authn based networks (and in particular for global federated infrastructures like eduroam). This option would fit well with the other options in "wifi security", imo. Reproducible: Always
Do you really have version 5.6.4? These properties should be already there as you can see here: https://quickgit.kde.org/?p=plasma-nm.git&a=commit&h=92faca4156698df2aee896dbd3a1a6734be58056
Ping? Is it really a problem with Plasma 5.7.x or 5.6.x?
Closing, subject match property was implemented a year ago.
*** Bug 364972 has been marked as a duplicate of this bug. ***