I have found how to solve my problem of graying out for Network Manager " Edit Connections" on my Laptop : I place the Laptop on standby mode ( sleep mode), then I re-start it and "Edit Connections" line is sentitive again.....!
I have found how to solve my problem of graying out for Network Manager " Edit Connections" on my Laptop : I place the Laptop on standby mode ( sleep mode), then I re-start it and "Edit Connections" line is sentitive again.....!