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KiwiTim

405 posts

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#116372 27-Apr-2013 08:35
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Hi,

I've got a few questions about using wireless repeaters / range extenders.

My brother lives in a two storey house in Sydney. He has TPG naked ADSL2+ broadband, which came with a NetComm NB6Plus4W modem/router. The router is located on the 2nd floor. He gets very poor wifi on the ground floor.

He has an old Netgear DG834G router that we would like to use as a wireless repeater.

The primary IP address (homepage of the router) of the NetComm router is 192.168.1.1

The primary IP address of the Netgear router is 192.168.0.1

So NetComm has a subnet of "1"
and Neatgear has a subnet of "0"

I would like to change the subnet of the Netgear router to match that of the NetComm, but it will not let me.

I am attempting to follow the instructions given here for using wireless repeaters:
http://vpncasestudy.com/download/WDS/WDS_Concept.pdf

However, with just one wireless repeater being used rather than two as indicated in the above PDF.

Obviously, since I cannot get the above devices to use the same subnet, I cannot navigate to the Netgear homepage of 192.168.0.1.

Do I need to use routers of the same brand and model to extend my brother's wifi, or will the above two devices do it for me?

Can I enable WPA2 between these two routers (they both support it individually)?

Would we be better off just to buy one adsl2+ modem/router with a much more powerful wifi signal (any suggestions)?

Many thanks,

Tim

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raytaylor
4076 posts

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  #806462 27-Apr-2013 19:28
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So to be clear

1) Your router down stairs runs the DHCP server and has the ip address of 192.168.0.1
    It issues DHCP addresses from 192.168.0.10-192.168.0.49
   subnet mask is always 255.255.255.0

2) A lan cable runs between port 1 on the back of the master router, to an Ethernet Over Power adapter. TP-Link make some good ones.

3) Upstairs, another Ethernet Over Power adapter is plugged into the wall. A Lan cable runs from that to a LAN port on the back of the slave router which will have its routing functions switched off.
The ethernet over power adapters can run at 50-100mbps easily in most houses and are much easier to install than cat5 cable.

4) To make the slave router a plain access point, switch off DHCP or DHCP Server on the LAN interface - leave the internet/WAN/DSL interface as is.
Also change its LAN ip address to 192.168.0.2 with a subnet mask of 255.255.255.0
Because the DHCP is switched off on the second router, it just acts as a bridge. No computers will try to use its wan interface to get online, they will go through the wan interface of the router downstairs.

5) Now the wireless.
inside 192.168.0.1
 - SSID or network name = YourSurnameWifi eg. TaylorFamilyWifi
 - Channel = 1 (not auto)
 - WPS = disabled or switched off
 - Security = WPA/WPA2 PSK
 - Security Type = TKIP or TKIP+AES Auto
 - Passphrase or key = any wifi password of your choosing at least 8 characters long.

inside 192.168.0.2
 - Eact same settings above except use channel 6 or channel 11
If you cannot match the same settings, use WPA-PSK + TKIP only and do the same in the master router.

With the same settings in each router, the laptop will roam to whichever AP it gets the best signal from.
When it talks to the upstairs router, it joins back up through the LAN ethernet cable, over the powerline, into the downstairs router as if it was never disconnected from the downstairs router.

With the same SSID / network name and passwords you can almost seamlessly roam. if you have different wireless security settings on each router, you will not be able to roam and have problems.












Ray Taylor

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