Thanks Mauro, it is a networking issue...
customer is checking DHCP issue or networking issue
Here is a KB article with log locations for VMware View, http://kb.vmware.com/kb/1027744. The KB is for 4.5 but it may still help you.
The issue seems to be isolated to a single user on multiple desktops? I would check all of the usual connectivity problems like DNS and Firewall on both connecting computer and VDI machine.
If you need a help, i´m here.
and mittim too.