I am not able to login to the vSphere Web Client or full client when the username contains spaces. I was able to figure this out after some troubleshooting.
I created a user named "Testing" and it logs in just fine, so I renamed it to "Testing Test" and I am no longer able to login.
Anyone else seeing this?
VMware vCenter Server Appliance 5.5.0.5101 Build 1398493