Re: Unable to get LAN connected

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From: OLIM (anonymous_at_discussions.microsoft.com)
Date: 02/04/05 

Date: Fri, 4 Feb 2005 09:32:58 -0800

Thanks again. Am running Windows XP Prof.
1. Cannot change the computers round, as there is extra
hardware installed in the Host/server called 'Cisco
Aironet Wireless LAN Client Adapter' to be able to
receive (via aerial on roof), the Internet by Wireless
Broadband, (NOT cable or through the telephone line,on
ADSL). Our other 3 houses use the same system, working
correctly. (It is a local system for this area, trying
to get more people cheaply onto the internet). I have
added the Ethernet adapter, to enable other computers to
access the internet through this computer, (Is ok in our
other houses. Host computer & system is free of charge to
our tenants!)
2. Unable to use a router, as it has to go through the
host computer, with the Cisco system installed, to get
the internet.
3. Cables used are:
  A. From Host PC to Network Switch is a Crossover patch
cable, inside trunking up the edge of stairs and round
the walls. If cable was damaged, would not show on host
computer as connected.
  B. From Switch to bedrooms are UTP Patch cables. Unable
to know, if working or not.
Both are store bought cables with pre-assembled
connectors.

At the moment no computers are connected in bedrooms, as
they would not be able to access the internet anyway! As
the problem is: when the Ethernet LAN is connected
downstairs on host, then cannot get online to any
websites, so when disabled this Ethernet LAN, can get
online ok, (on host PC).
Tried a working hub from another house! Except that the
above problem was discovered. Before, could not get the
Ethernet LAN to connect at all, (on host PC). Had red
cross on it, in system tray.
Hope the above answers your questions? Many thanks for
trying to help me, do appreciate it.

>-----Original Message-----
>On Thu, 3 Feb 2005 09:35:02 -0800, "OLIM"
<anonymous@discussions.microsoft.com> wrote:
>>Thanks for reply. Answer to your question.
>>The LAN is using a fast Ethernet adapter, (sorry not at
>>problem computer so unable to give name), installed
>>inside the host/server computer (has been working
>>before) & is then wired from this computer downstairs
>>to upstairs, (on landing) where the new 'Sitecom'
>>Network Switch (5 port) is going to be installed, then
>>up to 3 laptops or computers would be plugged into this
>>Network Switch wired to each bedroom. They would then
>>configure their own laptops to the one downstairs, have
>>this system working in 3 other houses, with up to 6
>>bedrooms using only a hub on landing, and is working
>>fine. So cannot understand why this house has the
>>problem? Maybe using a Network Switch instead of a
>>simple hub (as told this is better) may work when it
>>gets installed. I will look at the websites you mention
>>also. ///
>Firstly, using a switch instead of a hub is absolutely a
good idea, if you have
>more than 3 computers connected. A hub is exactly like
a party line phone
>system (do you know anyone who can reminisce about party
lines?). As cheap as
>switches are, I cannot imagine why anybody would use
hubs.
>
>Unfortunately, a switch, by itself, probably won't solve
a connectivity problem
>like yours. Since you have multiple computers in your
house, you're going to
>have to move things around a bit to isolate your problem.
>A connectivity issue like yours has 3 possible causes:
>1) Component A (ie the hub).
>2) Component B (ie the cable).
>3) Component C (ie the computer).
>You're going to have to swap things around a bit,
Connect the problem computer in place of one of the other
computers (IOW use a known good cable and hub port to
connect the problem computer). Then connect a good
computer to the cable / Hub port that's involved in the
problem. And see where the problem shows up.
>
>How did you decide that the original hub was bad? Have
>you considered getting a router, and eliminating
>the "host" issue altogether?
>
>Also, how are you running these cables up and down the
>stairs without interference between people and cables?
>Are they store bought cables with pre-assembled
>connectors? Or custom length cables with connectors
>attached on-site? How do you protect the cables from
>damage?
>Cheers,
>Chuck

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