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Ah, missed that, my bad. Yes, that's about it. I'd be interested to get a follow up from @Guilherme Vianna , once the culprit is found! I follow @bbgeek17 , I would say it is not local to the server installation. Bummer you spent so much time reinstalling! With Ubuntu server one usually has...

Hi killmasta, Is that not a configuration option in the graph display of the Windows utility?

Another take: can you open the web interface on the Proxmox server itself? You could install a text-only browser (apt install links) and browse to 127.0.0.1:8006 ; probably gives a certificate warning, but hey, at least it connected. After that try the actual vmbr0 IP at that moment, to find...

That would mean a downtime of the link equal to the boot time of the switch. Could be long enough to trigger corosync timeouts. Overheating? One of the companies where I worked had switches with no sensors on fan rotation and perhaps temperature; they only found out the fan was clogged ( not on...

Hey, how do you know Proxmox is actually at 192.168.0.50? Does it react to ping? And of course, the things @leesteken & @Folke Gleumes mentioned; Proxmox shows the web access address above the login prompt.

Hi Guilherme, Welcome to the forums! You must mean you can't access ;-) Try adding the port: 192.168.0.50:8006

Hi tipex, Would you not start with a single Proxmox with a fixed IP, get that running, install OPNSense, and then add the other nodes? How much DNS would you need? If it is only for apt, you could get away with a couple of entries in /etc/hosts until things run. If you don't have a router yet...

Hi user19.. Is the testlab near you? I would go there and have a look how (and whether) they are connected! Proxmox is "just Debian", which is "just Linux". There is no magic in Proxmox preventing any device being visible.

For reference, the term I could not recall just before I see on screen now: IOMMU group. There is a nice website that lets you look up your board when you don't have access to your Proxmox, or someone else's IOMMU groups ;-)

Hi Daze, Welcome to the forums! Yes, a vague idea :-P Which motherboard do you use? Not all motherboards support a lot of choice in "passthrough groups". I never used it, so the specific terms slip my mind. The point is: you can pass through a resource group all-or-nothing. Besedes that, I...

Is it a direct connection from one building to the other, or is it fiber optic via the Internet? I think @spirit means: a direct cable from one building to the other, only for Proxmox node communication (so not via the Internet, and not shared with other services). What are the ping response...

Hi Albert, Welcome to the forums! For the rest of the story it does not matter so much, but I wondered which HDD and which server, recalling that you already had HDD and server connected to begin with. This is what I understood from your plight: A server (A) crashed thoroughly enough not to...

Hi José, No need to apologize, most of us here are learning :-) The best way to learn may be education, but doing is a good second. Asking someone to solve the problem without having a look yourself takes away the chance to learn. Pay special attention to spirit's message: I think he solved...

Hi spirit, Thanks for chiming in! I wondered about that, but could not find it in the docs (and did not know what to search for). How could you recognize the problem, is it the retries on the messages or the sync/membership changes like the snippet below? Is the timeout configurable, or...

Hi nexi, Welcome to the forums! That is a strange problem you have there. But no question and very little info to go by ;-) Proxmox runs on Debian, which runs on Linux. The initial ramdisk is started before the actual Linux kernel runs, and is not Proxmox specific. I tell this, because you...

The forum is for help you, not to do your work! ;-) Did you have a look at the files yourself? What is your conclusion?

Hi José, That woul maked power difficulties extremely far fetched Yes, there is. Proxmox is built on Debian. Do you have experience troubleshooting Linux systems? It seems there are network problems, but I would learn something new if that turned out to be causing the synchronous reboot...

Hi user 19... But you can access them in Proxmox 7.4 or another OS? There is a way to find out of course... Is the testserver in a datacenter near you?

Hi generalproxyuser, Does the Proxmox-installer have a text mode? Does it suffer the same symptoms? It may not solve the problem with the graphical install, but at least you can get going. Another workaround would be of course to install 7.4 and then upgrade. As for the cause of the...

Hi José, What I notice: All three servers reboot at the same moment, Nov 01 10:39:33 There are many cpg_send_message retry's, which does not seem the way it should ] A processor failed, forming new configuration: token timed out (3650ms), waiting 4380ms for consensus. ; more than 4 seconds is...