Copy File problem in windows 7 x64

I've been having problems copying from a specific desktop to my 2008R2 server for a long time now. The problem is most notable when I copy pictures to my server. To solve the problem I disabled:

IPv4 Checksum Offload
Large Send Offload (IPv4)
Large Send Offload v2 (IPv6)
TCP Checksum Offload (IPv4)
TCP Checksum Offload (IPv6)
UDP Checksum Offload (IPv4)
UDP Checksum Offload (IPv6)

Now it is working well.