Hello! I'm new here, but I'm not new to using Fedora, or Linux more generally. I am a bit less adept at system administration type tasks, but most can be solved with some Googling. This one seems elusive, however.
The real issue is I don't even know what I should be looking for, and I have no idea what other information even might be relevant, so any and all suggestions of how to help people help me are appreciated!
Here's the setup. I have Fedora 17 on a server-type box which I typically control through SSH and/or VNC. It has two Ethernet cards: one built-in to the motherboard, and one in a PCI slot. The motherboard-based one has always worked fine with a static IP, and I continue to be able to VNC and SSH with no issues, making use of LAN DNS. The firewall is turned completely off (the machine is low-priority and shielded inside a local network).
So, the problem: NetworkManager has never worked correctly. As far as I can recall, I have gotten this error ever since installing F17. When I open the GUI, another popup appears with a sad-face computer and the message
"The system network services are not compatible with this version." I can close that popup, but the NetworkManager GUI shows only one device: "Network proxy," and the only option when I try to add a device is "VPN."
There is no icon in the taskbar; I can make it appear with
systemctl start NetworkManager
but accessing the GUI through the specific icon gives the same results as accessing it through System Settings. Trying to run the "nm-applet" from the terminal results in utter failure: the GUI doesn't even show up, and I have to just kill the process.
Here's the real kicker, though: usually, only the motherboard-based Ethernet card shows up under ifconfig (along with lo and lobal...) as p4p1. After trying to start NetworkManager, the other network card also shows up under ifconfig, as p7p1. I can then SSH into the machine using that card's DHCP-assigned IP.
I would like to be able to use the graphical interface, which I think would give me a better idea of what's actually going on with the network cards, although I'm really more interested to know what's causing the issue with the GUI. Please let me know what other information would be relevant.
Thanks for any help!