VDI:
1&2) Windows 7 SP1 64-bit
3) Lync 2013 Full client 32-bit with Office 2010 32-bit
Host
1) Windows 7 SP1 64-bit
2) Yes, 32-bit Office 2010 , 32-bit Lync 2013 (which is closed when using VDI) and 32-bit Lync VDI Plugin
Internal/External Server name are set correctly to our internal pool and external address to our Lync reverse proxy. Our mobile phones/external clients work properly
VM ticket: 13345947607 (I did get a call in the last hour actually and they are looking into logs and working it there too). Thanks for the help!
p.s. I've removed Lync 2013 from my host machine for cleanest setup
p.p.s we do not have Symantec Endpoint Protection, but I did disable MS Security Essentials temporarily and retried with no luck