no more connection can be made to this remote computer at this time

[win]

First, in my network, there are windows 7 and xp computers. One xp computer shares a folder with full access. That computer ip is 192.168.2.2. If I can call it on other xp computers, sometimes, it say that no more connection can be made to this remote computer at this time because there are already as many connections as the computer can accept. The same error occur if i use "net view". But calling from windows 7 computers is always fine. Nothing happen. What is the problem?
Thz.

[dahlarbear]

1.  Shared Folders.  From the Windows XP computer sharing the folder, use the "Computer Management" snap-in to monitor how many users are connected and who is connected to the shared resource.

To access:  Start -> right-click My_Computer -> Manage -> double-click to open Shared_Folders.

2.  Reference(s):
     a.  Inbound connections limit in Windows XP
     b.  Troubleshooting Server Message Block inbound connection limit in Windows peer-to-peer workgroup
     c.  Managing and Maintaining a Microsoft Windows Server 2003 Environment
     d.  Windows XP SP2 and Event ID 4226

[win]

I found that:
in Shares:  at ipc$ there are 10 client connections ever, i can't stop it
in sessions: many computer connect but even i disconnect it, it appears again after refresh. I made sure not to connect that computer.

All  computers showed in sessions are windows 7 computers.