unshare while copy

[vidimTe]

Hi all,
Im having a strange problem that I just cant fix.
I got Vista ultimate x64 runing and sharing disk with files all good.
Now when I copy files from Windows 7 machine to that network share in the middle of copy vista unshares all shared drives...? And it wont share until reboot.
I tried smb2 off/on registry fix (on vista and windows 7 all combination's) that didnt help. Searched up and down the net and still cant find solution. As the machine is 8 proc with server board I even tried to bridge 2 net adapers (that work fine) hoping to maybe solve buffer issues...still nothing. Suspicious is the fact that copy brakes sharing on "larger" files over 10MB. Smaller ones copy fine.

Windows 7 and vista are 64 bit. Strange thing is that it used to work fine but now its not. Maybe some of the windows updates messed it up but I dont know.

Thank you for your time.

 

[vidimTe]

We found the solution that worked (so far will see after few days). On vista in regedit
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters
Size value 3
And give background processes higher resources.
And now it works. Maybe it helps someone else.