PowerEdge R750 TPM 2.0 VMware

Question

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!

ldoodle · Accepted Answer

FFS! Needed to Expand Advanced Settings. Been one of those days!

ldoodle · Answer

This doc: Dell EMC PowerEdge R750 BIOS and UEFI Reference Guide | Dell UK Shows this, which I just don't see:

JabbyJab · Answer

Just ran into the same issue, hah!

NicolasG. · Answer

Hi  Idooldle, thanks for the answer can you develop how to do that? I have the same issue, esxi hypervisor no vcenter and I can't find what to do.

Jebus0fSuburbia · Answer

Yeah, I banged around with this for a while too and felt real dumb when I saw it. Basically, the UI is really badly formatted so your brain doesn't immediately register the "TPM Advanced Settings" isn't expanded because there's a list of settings immediately below it and it LOOKS like it's already expanded if you're not paying attention to the little arrow next to it...

zj_1968 · Answer

take a look here...Seeing error 'TPM 2.0 device detected but a connection cannot be established' on host after enabling TPM 2.0 (81838) (vmware.com)

RobNJane · Answer

You also need to enable Intel(R) TXT before the TPM Attestation alarm will clear in VSphere. vSphere Client version 8.0.2.00000

Rack Servers

vSphere Client version 8.0.2.00000

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