NetworkManager from home:dliw:kde4 project
Select Your Operating System
Add repository and install manually
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dliw:kde4/15.6/home:dliw:kde4.repo zypper refresh zypper install NetworkManager
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:dliw:kde4/15.5/home:dliw:kde4.repo zypper refresh zypper install NetworkManager