I am posting this a bit long, to provide complete perspective.
I have an XP-pro PC as the host and XP-home PC as client, on a peer-to-peer network. Earlier it was possible to access shared files on either PCs. However, recently although the pro PC could access files on home PC, but home PC stopped accessing files on pro PC. The error message on home PC was "\\SYSTEM1\xxxx is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. Not enough server storage is available to process this command."
BTW, internet connection sharing used to work perfect earlier. However, this too stopped happening, although I could get into the internet independently from both PCs. I had assumed both these issues to be arising from the same cause.
Courtesy Holger (http://www.experts-exchange.com/Networking/Microsoft_Network/Q_21338209.html
), the shared files' access problem has just got solved by hacking registry (IRPStackSize value tweak). Event ID 2011 was my situation. Still wondering what caused it. The MS-KB article 177078 (Holger's link) mentions Norton/IBM AV ... but, I use AVG.
So now, host can read client files and client can read host files, i.e., networking is back to normal two way traffic.
However, internet connection sharing is still not happening on client. Client does not recognise that host is in online state.
On a different forum, I have heard a recommendation to re-run network setup wizard on the host computer. I am a bit apprehensive of doing that since a web resource (www.ezlan.net/sharing.html
) says "Repetitive use of the Windows Network Wizard ... might write changes to the Registry without necessarily erasing previous information."
Thanks in advance for guidance, please.