Hi Joerg
Yes the VRTX is my home lab which I use for testing etc, not a production system, I was wanting to try and get some experience using vSphere 7.
I think you might be onto something with QLogic. When I did the upgrade from 6.7 to 7 (not a fresh install), there was several VIBs I had to uninstall as seen in the attached pic.
As you can see they are QLC, which are QLogic network drivers.
However, if I SSH to my server (running ESXi 6.7), you can see the drivers used for the NICs, are the tg3 drivers, which are native drivers
Name PCI Device Driver Admin Status Link Status Speed Duplex MAC Address MTU Description
------ ------------ ------ ------------ ----------- ----- ------ ----------------- ---- -------------------------------------------------------
vmnic0 0000:15:00.0 tg3 Up Up 1000 Full 18:a9:9b:9f:88:4e 1500 Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet
vmnic1 0000:15:00.1 tg3 Up Up 1000 Full 18:a9:9b:9f:88:4f 1500 Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet
vmnic2 0000:16:00.0 tg3 Up Up 1000 Full 18:a9:9b:9f:88:50 1500 Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet
vmnic3 0000:16:00.1 tg3 Up Up 1000 Full 18:a9:9b:9f:88:51 1500 Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet
So if ESXi 6.7 the server uses tg3 drivers then ESXi 7 should also use the tg3 drivers
As it is a blade server can there be some other interface device that is causing ESXi 7 not seeing the NICs?