I have five systems and have successfully upgraded several to version five, however on one of my servers BI5 freezes as it tries to recognize the cameras. I have let it sit for fifteen minutes but eventually I have to go to the task manager to shut BI down. If I go back to version 4, it works normally. BTW the system is a Dell Power Edge Server with dual Xeon E5-2698v3, 64GB of memory, eight 512GB SSDs in Raid 10 with 25 cameras. Ive done the usual things like rebooting, reinstalling, deleting and rebuilding the registry setting, using the configuration file that BI creates during the update and one I have created manually from version 4, without success. If anyone has a solution, I would greatly appreciate hearing about it.