vSphere client 5.5 “Use Windows session credentials” error: Cannot complete login due to an incorrect username or password

I got a couple of times this error: trying to login to vcenter using the vsphere client with the option “Use Windows session credentials” an error of incorrect user/password is returned even if the credentials are correct.

In many blogs (http://vinfrastructure.it/it/2014/01/problemi-nellautenticazione-in-vsphere-con-credenziali-di-dominio/) and vmware kb (http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2035510) they say that the error is resolved by recreating the active directory identity source but in none of my cases I was able to solve in this way.

The solution, in my case, was to simply create a PTR record in the reverse zone for vcenter ip resolution!

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  1. Pingback: vSphere Client: “Cannot complete login due to an incorrect user name or password” | Documents do Administrator

  2. In my case, the “Use Windows session credentials” checkbox was not allowing me to login, but leaving that checkbox unchecked and then entering my AD credentials manually was working fine.

    I had the proper records in both my Forward and Reverse Lookup Zones and was still having issues. So the PTR record wasn’t going to be the fix for me.

    I left the domain, re-joined it, rebooted the server, still couldn’t login with that checkbox.

    My issue was much simpler. I was missing the domain name in the Host Identification section of DNS and Routing Configuration. Ironically, the ESXi server won’t let you configure this if you are currently joined to a domain. So I had to Leave Domain again, configure the domain name in Host Identification, and then re-join the domain. After that, I was able to login using either the checkbox or with manual credentials without any issues.

    vSphere Client > Configuration tab > Software > DNS and Routing > Properties > DNS Configuration tab > Host Identification > Domain

  3. Pingback: vSphere Client: “Cannot complete login due to an incorrect user name or password” – Eduardo Mozart