I want to bring your attention to this KB article, regarding the Web Client and its inability to load after May 5th.
The upshot is this:
- Problem: the web client fails to load with vSphere Web Client 5.0 after May 5th.
- Solution: In progress. VMware engineering is aware of the issue and this is a high priority item to fix.
- Work-around: It’s a bit involved (but certainly not impossible), so you are best to see the KB article for details.
It is not the end of the world, as the C# client will still function, but it is of course highly inconvenient. If more significant news regarding this is made available I will be sure to share it. The KB article will be updated once a fix is available as well.