We currently just purchased 10 new HP Pro 310 All in Ones for our sites. These computers serve as a server in a client server environment using SMB file transfer. For some reason only on these machines is the transfer so slow that they can hardly be used effectively. I have turned off all Firewalls and Virus Protections. The computers have 1 TB hard drive space with 8gb of Memory. I have tried everything I know, but nothing helps. I did some research and SMB packet signing is disabled in Regedit.