I have had a good search around the forum and found this to be a common problem that crops up.
Some people have solved this by disabling SessionReliability and other workarounds but has this been solved to work reliably without having to do these? We have HP thin clients and they work fine on the same network on the same Xendesktop 5 VDIs as well as laptops and PCs accessing the same.
I read somewhere that there might be a hardware fault on the actual units themselves with the NIC MagJacks getting interference with certain other components making them very fussy with packet drops.
Cheers
Falken