Remove Network Bridge

I have a Windows Server 2012 R2 with 4 on board NICs, someone prior to me set up the server with what appears to be a network bridge between 2 of the 4 NICs. The network property page for each of the NICs in question report back that they are part of a bridge. I do not see the usual Bridge icon in the Network and Sharing control panel. I do not see one listed in device manager either. From what I have been able to deduce, the consensus is to uninstall the NICs via device manager, reboot and allow the system to re-install them. As this server is running among other things, SQL server, and it is in an active production environment, I was hoping not to have to go that route. So any chance there might be a silver bullet that I can use to regain control over these 2 errant network interfaces?
Bob ConklinConfiguration/TEST TechnicianAsked:
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Bob ConklinConnect With a Mentor Configuration/TEST TechnicianAuthor Commented:
Ok so here is what "fixed" this issue. I took the 2 unassigned NICs and made them into a bridge. The bridge icon showed up in the control panel as it should. At this point I had 4 NICs, and 1 bridge in the control panel. I selected the bridge that I just created and used the "delete" choice from the right click menu, the OS proceeded to process the request. At this point my RDP session disconnected and my endless ping that I had going also dropped out. In about 3 minutes, the ping returned and I was able to re-establish my RDP session. I now have 4 NICs in the control panel, no bridges or virtual switches and I can access the properties tab on all 4 NICs.
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Adam BrownSr Solutions ArchitectCommented:
Does the server have Hyper-V installed on it? If so, the bridged NICs are bridged to the virtual switch in Hyper-V. If that is the case, they won't appear as a bridged NIC, but there will be a "virtual" NIC in the adapter list.
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Bob ConklinConfiguration/TEST TechnicianAuthor Commented:
I do not see where Hyper V has been configured on this server, its twin is running Hyper V and I see on that server the virtual switch in the network control panel. I have attached a few screen snips of what I see.
Bridge1.JPG
Bridge2.JPG
Bridge3.JPG
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Adam BrownSr Solutions ArchitectCommented:
Select one NIC, hold CTRL and select the other, right click on one of them, and it should give you the option to remove the bridging.
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Bob ConklinConfiguration/TEST TechnicianAuthor Commented:
Had tried that too.....
Bridge4.JPG
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Adam BrownSr Solutions ArchitectCommented:
Do you have any third party NIC teaming software installed?
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Bob ConklinConfiguration/TEST TechnicianAuthor Commented:
The Broadcom BASCs suite is installed but not configured and the services are set to not start.
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Adam BrownSr Solutions ArchitectCommented:
When you right click the NICs and select properties, does it show a sharing tab and the list of protocols on the NIC or just the name of the NIC with a configure button?
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Bob ConklinConfiguration/TEST TechnicianAuthor Commented:
All that appears in the "Configure" button, no normal tabs to set the protocols, IP address, etc.
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Adam BrownConnect With a Mentor Sr Solutions ArchitectCommented:
Okay. You're going to have to re-install the drivers for the NIC if that's what's showing up. You might be able to get it going right with a reboot, but that's probably more disruptive than re-installing the adapters.
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Adam BrownSr Solutions ArchitectCommented:
Good to know. Thanks for putting up the solution.
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Bob ConklinConfiguration/TEST TechnicianAuthor Commented:
With Adam's insight and my own troubleshooting the issue was resolved.
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