"limited or no connectivity message"

[JEO]

goodmorning!i have had a problem with my local area network!actially 2 weeks ago i was working proparly but now i have "limited or no connectivity message",i actially have 5 computer that are linked by 5 D-LINK fast ethernet switch,and on on computer i have a internet moderm connected and i share network on other 4 computer so that i can connect to internet .but now i have only internet on one computer on which the moderm is connected because of "limited or no connectivited" so how could fix this problem,because i have changed nothing on my network so i am wondering the why there si this problem.and an other thing is that when i assign static address to the all computers,this message doesn't appear again there is connectivity between computers but still now i can't share internet connection if ip address are assigned statically.anyone can help please?

[Geek-9pm]

Firsts of all, how did you manage to get five PCs on one network connection?  Does that one PC have a "bridge" connection?

Have you verified that the switch is not damaged?

With a switch, not a router, static IP address is required. Unless DHCP  is available.

On eBay you might shop for a:
Linksys EtherFast 8-Port 10/100 Wired Router for under $50 used in good condition.

[truenorth]

On the computers that are displaying the message"limited or no connectivity" from the icon for the connection on the task bar beside the clock  right click on the icon. In the produced window select repair. When completed close the window. WARNING this may only last for the current session that the computer(s) are on. truenorth

[Geek-9pm]

truenorth, he can not hook five computers to this ndevice.

WHAT THIS PRODUCT DOES
The DES-1105 is a 5-port 10/100Mbps Ethernet switch.
By  connecting  the  DES-1105  to  your  router,  you  can
add  up  to  four  computers  or  other  Ethernet-based
devices  to  your  home  network.  Add  a  print  server,
Network-Attached Storage (NAS) or network camera
and experience the benefits of networking.

The modem takes on of the ports.
Unless the has a bridge, which he has yet to clarify.

[truenorth]

Geek it might be that you have NOT understood the problem correctly="2 weeks ago i was working proparly" truenorth

[Geek-9pm]

He did not fully explain how the system works, when it does work. You don't run five PCs from that switch. Unless you have a bridge.  He needs to test the switch. And the bridge.
The answer could be:
A. The bridge is broken
OR
B. The switch is broken

That fits the case where on PC works and the others do not. The modem does not go to the switch, it noes to then first PC. The failure is between then first PC  modem and the switch.
Using static IP just masks the problem. But indicts the issue is in the bridge. Ned to fix the bridge.
The four PCs can not get to the modem, which does the IP assignments.

This is for Windows XP:
http://www.windowsnetworking.com/articles_tutorials/wxpbrdge.html

[truenorth]

Be nice if about now we got some more input from the O/P.truenorth

[Geek-9pm]

Be nice if about now we got some more input from the O/P.truenorth

Yes, I am sorry. If the OP is still there. Hope he will let us know if he has been able to repair the network bridge. The bridge is also called 'network sharing' in bother places.