[400] An error occurred while sending an authentication request to the vCenter Single Sign-On server

[crazy_canuck]

We are currently getting this error on our Vcentre login page

[400] An error occurred while sending an authentication request to the vCenter Single Sign-On server - An error occurred when processing the metadata during vCenter Single Sign-On setup - Cannot connect to the VMware Component Manager

 I am wondering if anyone has seen this issue before?

[ashilkrishnan]

Hi @crazy_canuck ,

Please mention the vCenter version when raising such issues. It would be helpful for others to check for known issues.

If this is an issue while accessing vCenter with it's short name, please refer this article --> https://kb.vmware.com/s/article/71387 

Hope that helps

[crazy_canuck]

Thanks for the info.

The version of VCentre is 6.5 and it is not due to the short name. The error shows up whether you use the FQDN or the short name.

[Jessie_b]

Did you ever find the fix for this? I got this exact error this morning, also on v6.5, and using fqdn.

[10man0ff]

I also have 6.5 and the same error. Please share how you resolved the problem.

[Ajay1988]

Validate if you are hitting this    -https://kb.vmware.com/s/article/76719 

Check cm.log for more details 

[HesstonNeuf]

That link article worked for me. 

My error was: [400] An error occurred while sending an authentication request to the vCenter Single Sign-On server - An error occurred when processing the metadata during vCenter Single Sign-On setup - Cannot connect to the VMware Component Manager https://SERVERNAME.DOMAIN/cm/sdk?hostid=221a8a21-5908-14e3-h13c-005056af370b.

[diploware]

Hi HesstonNeuf,

I'm experiencing exactly the same error.

Do you mean https://kb.vmware.com/s/article/76719  with "linked article worked for me" ?