The issue is the LanmanServer service runs out of memory. We need to boost that up:
On your Windows machine, fire up regedit (Start -> regedit) modify the following registry keys:
“HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache” from 0 to 1
“HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size” from 1 to 3
The problem seems to manifest itself more frequently if you use your Windows box as a file server or a media server. If you can, restart the Windows box. If for some reason you can’t (e.g. your significant other is watching a video on the tv streaming from your Windows box), then you can do effectively the same by restarting the following services:
(Start -> cmd.exe) as administrator
>net stop LanmanServer /y
> net start LanmanServer
> net start Browser
> net start HomeGroupListener