Error opening console

Hi!

Trying to open a console from the cliet I get the following message:

"Error Connecting: Connection terminated by server, ret -1 err 10054"

If I do the same direct on the Virtual Center, I get it open.

What could be the reason?

VC 2.5.0 Build 104215; Client 2.5.0 Build 119826; ESX 3.5.0 Build 130756

Thanks,

Leonid