Connecting to internet through WAN via ADSL router

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angela_s

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Feb 4, 2011
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My ISP provides internet connection through an RJ45 Ethernet cable to be plugged in directly into the Ethernet port of the computer.

I want to share the internet on two computers. I have an old ADSL modem+router with 4 LAN ports. The router does not have a separate uplink port for LAN but it detects a WAN network when the internet cable is plugged into any of the four LAN ports and the WAN led indicator on the router lights up. But when I connect my computers to the router I am unable to browse the internet. I can only reach my ADSL modem by typing the IP address 192.168.1.1

Can someone please help my configure my router?

Thanks in advance.
 
Solution
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All that is happening when you plug the lan port into your ISP is you are in effect connecting a switch to the ISP. Most ISP only allow a single IP address so this does you no good.

Although there are some routers that accept DSL and ethernet WAN they do not just somehow detect them by themselves. You must have a dedicated ethernet wan port on the router. If your router does not then you cannot use it for the purpose you want.
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bill001g

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Aug 9, 2012
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All that is happening when you plug the lan port into your ISP is you are in effect connecting a switch to the ISP. Most ISP only allow a single IP address so this does you no good.

Although there are some routers that accept DSL and ethernet WAN they do not just somehow detect them by themselves. You must have a dedicated ethernet wan port on the router. If your router does not then you cannot use it for the purpose you want.
 
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Solution
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angela_s

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Feb 4, 2011
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Thanks for your response, bill001g.

You mean there is no way to configure my ADSL router to work with this type of internet connection because it does not have an uplink LAN port? The router does have a separate led indicator for WAN though apart from four separate led indicators for 4 LAN ports. I was thinking there should be a reason that the manufacturer placed the led indicator for WAN so maybe there was some way to make it work with the internet connection I now have.
 
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bill001g

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Maybe you can configure one of the ethernet ports to be a wan port. Hard to say so many different devices on the market. I can't see how it could work without you configuring it though since I can't see how it would just know some random port connected to the ISP rather than some equipment in your house.
 
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drachillis

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Nov 10, 2013
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go to the advance setup of the ADSL modem and see if there is an option of connection mode.. u will be given an option of swithching over to ethernet mode..do that and you should be able to access the net through the ethernet in plugged into the ethernet port of the ADSL modem.... worked for me with TP link modem.. for a similar solution with tenda modem go to http://www.tenda.cn/tendacn/Support/show.aspx?articleid=1552
 
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EasycapExpertti

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Nov 17, 2013
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I bet You must only change the router's IP address to for example 192.168.2.1 as I have made here in my tutorial video:
http://www.youtube.com/watch?v=S2XWAFd0tQI
 
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vishalbhatt

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Apr 25, 2014
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I have the same case. ISP (Wi5 in my case) has provided broadband through RJ45 and I have got an ADSL router with no WAN port on it but, I do see some WLAN led on it. I only wished the ISP had told me that a non-WAN router may not work for me.

Interestingly, I am reading conflicting answers on net. It seems to have worked for some people and not for some. See the links below:

http://rsudhakar.wordpress.com/2011/01/09/connectwi5
https://in.answers.yahoo.com/question/index?qid=20120204085255AATEJV8
http://www.tomshardware.com/answers/id-1771756/connecting-internet-wan-adsl-router.html

I wonder though, who would generate the multiple IP addresses which your home devices would need? As I understand, my ISP provides only one IP for me and if I disable the DHCP server on my home router, I cannot have more than one IP addresses

Angela_s, please share if you could crack this problem.
 
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