VM unable to connect through Bridge

ShortSkimper

New Member
Jun 22, 2021
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I have installed a Startech Quad Port 10G SFP+ NIC based on the intel XL710 chipset in my custom built rig. Currently having troubles with it. Borrowed a friends 10g NIC (sorry, i'm not familiar with what brand/chipset his NIC is) and with the exact same bridge setup, had NO issues. So it's definitely card and/or driver related from what I can tell. Proxmox recognizes the card with no issue. I can make a bridge with a port attached, give the the bridge an ip, and access proxmox UI from that ip. Sounds great right? I thought so too! Until it came time to attach a VM to that bridge. I have created new containers, new vm's, used old functioning vm's and containers, Attempted to use static and DHCP through containers and vm's. No matter what I do. Nothing attached to this bridge (which by all accounts, is fully functional, due to the fact that i can ping it from an external PC, I can go to prox ui, etc.) can get out. I'm leaning toward a driver problem. Has anybody had this issue? If so, what were the steps taken to resolve it?

System:

Asus Prime trx40-pro s Board
amd Threadripper 3960x
196GB G.skill ddr4 4000 (downclocked to 2666 because manufacturers lie)

Please let me know if anything else is required to troubleshoot this!
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I have since removed the ip from the bridge to make sure no conflicts ensue for proper daily operation. But be sure. if i attach an ip to vmbr2. I CAN ping it from an external PC on the network.

Thank you for any light you can shed on the matter!!!
 
I believe i've found something that could lead to why it isn't working. Any ideas how it's possible for that link to be showing as DOWN even if I can attach an ip to the bridge that it's attached to and reach Proxmox UI from an external PC?

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