Often, I have the problem that the buttons of the Ubuntu Mate Network Manager to edit or delete network entries are disabled. This means the current user - even if I am root - do not have permissions.
This is a long existing bug, but easy to fix: just start the network connection manager with sudo!
Now the buttons are enabled and you can delete or edit your connections :-)
Ben is a passionate developer and software architect and especially focused on .NET, cloud and IoT. In his professional he works on high-scalable platforms for IoT and Industry 4.0 focused on the next generation of connected industry based on Azure and .NET. He runs the largest german-speaking C# forum myCSharp.de, is the founder of the Azure UserGroup Stuttgart, a co-organizer of the AzureSaturday, runs his blog, participates in open source projects, speaks at various conferences and user groups and also has a bit free time. He is a Microsoft MVP since 2015 for .NET and Azure.