I have server Dell PowerEdge R630 with Windows Server 2019 STD with role Hyper-v. On Hyper-V several servers, and one with file server role. The Client from Windows 10 have a lot of foto on this server. When open in default Windows 10 browser, photo open normal, but when used in program like IrfanView, or XNView the file open veeeeery slowly. The same is when open PDF file alnd .avi. I tested in the same time file transfer from server to station and it's ok.
When I share a folder on Windows Server on this Dell (not on hype-v machine), the photo open normal on all program. So the trouble is probably in hyper-v, or Windows Server 2019 with role file server. Now, I don't have antywirus (will be installed after resolved this problem)
Someone have an idea, and could help?
IInformatyk