Solved: Router cannot connect to Internet (via another router used as a modem)

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glizda101

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Joined
Dec 24, 2012
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4
Hello.

I own two routers - D-Link DSL-504 (ADSL, not wireless) and D-Link DIR-635 (wireless).

The set-up used to be like this:
- Internet (ADSL) cable pluged in DSL-504 router
- PC connected to DSL-504 via Ethernet port
- DIR-635 connected to DSL-504 (Ethernet port to 'Internet' port) - DSL-504 works as a 'modem'
- Laptop wirelessly connected to DIR-635

Everything has worked (note: it wasn't me who set this up).

Unfortunatelly I have reseted the DIR-635 (wireless router) because of some troubles. Now the wireless router doesn't connect to the Internet. I can connect either computer via cable with the first router and it works like a dream. Computers can also see the DIR-365 router when connected to it via cable, but it does not see the Internet.

I've switched the setup on and off several times. Cables work. Computers work, they can see Internet from other sources.

I guess I need to configure the wireless router in some certain way, but I really have no idea, how.

I'd be grateful for your help.
 
Joined
Feb 9, 2008
Messages
1,862
Probably IP Address conflict as both D-Links would usually use 192.168.0.1 for default internal (LAN) IP.

You would need to change the LAN IP address of the DIR-615 to another subnet such as 192.168.2.1 for a modem LAN port to router WAN (Internet) port connection unless the DIR-615 can be set as an access point. Will need to check the User Manual to see. Will pull up a PDF and check.

Another option would be to set up using the following method by John Will.


Connecting two soho routers in a network
Tutorial from Johnwill from the Networking Forum

Note: The "primary" router can be an actual router, a software gateway like Microsoft Internet Connection Sharing, or a server connection that has the capability to supply more than one IP address using DHCP server capability. No changes are made to the primary "router" configuration.

Configure the IP address of the secondary router(s) to be in the same subnet as the primary router, but out of the range of the DHCP server in the primary router. For instance DHCP server addresses 192.168.0.2 through 192.168.0.100, I'd assign the secondary router 192.168.0.254 as it's IP address, 192.168.0.253 for another router, etc.

Note: Do this first, as you will have to reboot the computer to connect to the router again for the remaining changes.

Disable the DHCP server in the secondary router.

Setup the wireless section just the way you would if it was the primary router, channels, encryption, etc.

Connect from the primary router's LAN port to one of the LAN ports on the secondary router. If there is no uplink port and neither of the routers have auto-sensing ports, use a cross-over cable. Leave the WAN port unconnected!

This procedure bypasses the routing function (NAT layer) and configures the router as a switch (or wireless access point for wireless routers).

Hopefully one of these will lead you in the right direction.

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