Hi,

I have 2 of these hosts and vCenter says: "TPM 2.0 device detected but a connection cannot be established"

I haven't changed anything in the TPM settings.

I've looked at the VMware docs and they say:

To use a TPM 2.0 chip, your vCenter Server environment must meet these requirements:

-vCenter Server 6.7 or later
-ESXi 6.7 host or later with TPM 2.0 chip installed and enabled in UEFI
-UEFI Secure Boot enabled
-Ensure that the TPM is configured in the ESXi host's BIOS to use the SHA-256 hashing algorithm and the TIS/FIFO (First-In, First-Out) interface and not CRB (Command Response Buffer). For information about setting these required BIOS options, refer to the vendor documentation.

I'm looking in the BIOS and I cannot see these options:

that Dell docs say is "TPM Algorithm"
UEFI Secure Boot - I just see a "Boot Mode" option, which is set to UEFI. Normally I see a UEFI Secure Boot alongside this option. I do see a Secure Boot option under TPM Advanced Settings but this is a different thing - I've NEVER seen Secure Boot put under TPM options!