This is driving me bonkers and I have almost no hair left. I really hope someone can help.
When I attempt to copy or move a file or folder from my Windows 7 box to my WinXP (SP3) media server, the operation nearly always fails. Take, for example, my trying to copy the VLC Media Player folder (704 files, 75.1 MB) from Program Files on Windows 7 to the C: drive on the media server via a mapped drive (X). In all cases, after hanging up at some point during the copy, I get this message:
There is a problem accessing X:\<whatever current sub-folder copying is>
Make sure you are connected to the network and try again
I should note here that you only see the message come up if you wait for it (~1 min) after the copy hangs. If you try to cancel the hung copy before the message comes up, you can crash explorer.exe. I must also stress that there are no other access problems on the network. Files on the media server are accessible as expected from the Windows 7 box. Performing the same copy in reverse ("pulling" the same folder to the XP box from its console instead of "pushing" from Windows 7) works perfectly. All machines are in WORKGROUP and the same exact credentials are in use on all machines. All machines run the same version of Symantec Endpoint Protection and have firewall rules configured to allow all LAN traffic. All machines are connected through a Linksys SD2005 5-port GB "dumb" switch. Routing/DHCP is provided by a D-Link DI-604. NICs are all set to auto-negotiate.
I have tried monkeying with NIC settings (it is an onboard Realtek) to no avail. I have also installed an Intel PRO/1000 XT Server NIC just to see if it was a Realtek issue. No change.
Here's the kicker: my Windows 7 Panasonic laptop connected to the same LAN does not suffer this same problem. In fact, when I run the same copy, the speed is about twice as fast as on the Windows 7 PC in question (before the PC hangs up, of course).
Any ideas that I might try would be appreciated. I have even recently reinstalled Windows 7 from scratch hoping that might fix it.