I owe you an enormous apology. I came back and "posted" the fact that I solved the problem with the ol'turn it off/turn it on routine,. My post is not here, so I fumbled that and I am really sorry. The last thing I want to do is waste anyone's time.
To fix the problem I had, I shut down the VMs. Then shutdown the MAC. Power off. I have seen restarts not succeed when power does not go all the way off. Not for this problem, but I never take the chance anymore.
p.s. The sleep with runnng vms might have been the trigger. i did not know that should not be done. There have been many times my machines slept with the VMs on, and the sleeping created not problems, but I am running some relatively busy jobs now, which run between of the VMs and the other machines on network. Previously my sleeping VMs were awake but doing nothing when the host fell asleep.
Then started the Mac. Then started the VMs. Everything worked perfectly. That is all it took. I have had to do that a few times lately. Other than that, no problem whatsoever. I am very sorry to have prompted your attention to this.
VMWare Fusion and this forum are immensely helpful. One of the brightest lights in technology today is VM systems. I never thought I could have my servers. Now they are easy and better than the ones requiring their own hardware box.
@Technogeezer wrote:First, what macOS version are you running, and what is the version of Debian that you're running in the VM.
Did you check the network status from within the virtual machines and not just rely on ssh.
Do you have your Mac configured never to sleep? It's problematic to allow the Mac to sleep while VMs are running.
From the last time that you used the VMs successfully:
- Did any operating system updates get installed?
- Did any Debian updates get installed
Have you shut down the VMs, then restarted your Mac.
MAC OS was Catalina. Debian 8 for one VM and VM 9 for the other.
The image I posted does is not clear enough to read. There were messages there coming from the VMs saying they had no network. I don't remember the exact language.
The sleep mode was triggered by time nothing telling the mac that it should stay on for what the VMs were doing.
Nothing new installed in the relevant time frame.
I shut down and restared VMs. No good. Added the mac to the shutdown, problem solved.