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August 30, 2008 03:49am pdt
 
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Networking Nightmare

Tags: network, ethernet, switches, cisco, connectivity
Grateful to anyone who might have seen something like this before:

  Medium sized switched network.  Only router is the default gateway for all machines and has one LAN interface, and one WAN interface.  Pretty simple.
  Maybe a total of 300 devices on the network.  DHCP running on a Windows domain controller.  Total site has about 20 switches.

  They seem to be having a wide assortment of connectivity issues, slow responses, etc.  Some specific situations I was when I was there:

  1)  One computer could get DHCP fine, but could not ping the default gateway.  However, when I set a static IP, it could.?  Nothing was different except the IP was defined statically.

  2)  One office has a small Soho Linksys switch plugged into his ethernet jack.  His desktop always works fine, but his laptop keeps switching from 'Limited or no connectivity' to normal.  About 50% packet loss.  We tried swapping the cables with the desktop machine, and the issue remains. Tried a different switch port, same issue.  User says it only happens at this location and everywhere else works perfectly.

I am really out of ideas.  I would like them to buy a router and reconfig their network a bit, but they don't "have the time or money".  Any suggestions are appreciated.  :-)
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Question Stats
Zone: Networking
Question Asked By: killbrad
Solution Provided By: Moorelock
Participating Experts: 3
Solution Grade: A
Views: 0
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