Can't share wireless internet connection

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5 Oct 2005
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This is mostly a post i found whilst googling but it describes my problem exactly and far better then i could, i also made a diagram. These are a bog standard home pc and 2 Epos terminals.

I have a network connected with "switch". Network/File Sharing works
Main computer has a "wireless" adapter can connect to internet
OS is Win XP

I am trying to "share" this internet connection to network but when I do

Network Connections > Wireless Network Connection > Properties > Advanced > Allow other network users to connect through...

It says "...A Lan connection is already configured with the IP address.." and
can't share the connection

No other device or computer has this ip: 192.168.0.1

Switch ip range is: 169.X.X.50 and above
Wireless ip range is: 192.168.0.10 and above
Main Computer wireless has the ip of : 192.168.0.12
Main Computer Lan(Switch) ip is 169.X.X.59

Note:
1) Local Area Connection Requires Manual Ip to be entered in order to work to TCP/IP settings - Obtain Ip Automaticaly won't work
2) I can't modify the hardware

network-diagram.png


What am i doing wrong?
 
why on earth, when using a switch would you want to share your internet connection through a pc?????
Or am i misinterpreting your problem?
You can't modify the hardware? eh?
where is the device that gives you your internet connection? Are you piggy-backing from somewhere else, ie. a wireless router somewhere else in the building? Sounds like you are to me, in which case, if you do not how this wireless router is setup you aint gonna know what IP range its handing out, possibly resulting in the error you're getting regarding "...A Lan connection is already configured with the IP address.."

Your switch has a APIPA IP address that isn't on the same subnet as the others, yet its allegedly connecting 3 pc's together.

More info please mate?
 
all the pc's are on a wired lan.

Only one of them has a wifi card.

Only that one can access the net, but for ease of use i would like one or both of the terminals to be able to access the net.

But i can't share the connection.
 
lol, yeah you said all that in your op, was hoping for more info, like:
HOW your wifi pc connects to the internet? I assume wireless router. If so, do you have access to the router admin page to check the DHCP lease pool?
You also have a switch with its own IP range???
You really just need a dumb switch (oxy moron i know). Your switch just needs to act as a passthrough/connection device. It shouldn't have an IP at all.
Your trying to give a pc an IP of 192.168.0.1 but on a LAN with 169 as its starting octet.
If you cannot change the subnet of your switched LAN then i'm not sure how you will achieve it.

possible fix eg.
wifi pc collects IP of 192.168.0.10 (handed out by wireless router)
switch has no IP as all it does is connect your wifi pc to the same wired network as your other pc's.
Assign a IP to your LAN nic on the wifi pc of 192.168.1.10
Assign IP address of LAN PC to 192.168.1.12
That way they are both on the same lan, but you now need to have the wifi pc pass traffic through from 192.168.0.x (wlan) to 192.168.1.x (lan).
This make any sense?

Hope so, cos i may just have confused myself there? :p
 
another thought mate;
doing a factory reset on your switch may help as it may have been configured weirdly by some 3rd party. Then with a pc connected to it (by wire) check ipconfig /all. See what gateway it shows then try connecting to it from a web browser.
You may also be able to google for default configs for that particular model of switch.
 
Actually it connects Ad-Hoc to a mobile phone.

Thinking of investing £15 and just buying a wifi dongle for 1 of the Epos and bridging the connections.

Although im not sure if thats gonna work because the Epos needs to talk to the other Epos constantly and if that breaks the connection? Then im a bit screwed lol
 
A PC and two EPOS connected via wireless to a mobile phone? That has got to be the most bizarre thing I've heard this month :D

I hope you can be helped - I'm intrigued to see how this pans out!
 
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