IP issue?

Asus Wl-520gu wireless router
October 6, 2009 at 10:28:14
Specs: Windows Vista
I just recently bought the asus 520gu router and seem to have some trouble connecting to the internet. I think the problem might be an IP conflict since most of the time the internet is "connected" according to the router, but I can't open a Firefox browser.

From Asus router:
Lan IP 192.168.1.1
WAN IP 192.168.1.64
DNS: 192.168.1.254
Gateway: 192.168.1.254

From cmd:
IPv4: 192.168.1.2
Subnet Mask: 255.255.255.0
Gateway: 192.168.1.1
DHCP: 192.168.1.1
DNS: 192.168.1.1

How do I fix this? Do I just manually type the cmd ip into the router?
Thank you


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#1
October 6, 2009 at 10:30:59
What re you connecting the WAN port of the router to? That doesn't look right, unless you are plugging this router into another router.

-Ryan Adams

Free Computer Tips and more:http://RyanTAdams.com
Paid Tech Support: Black Diamond


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#2
October 6, 2009 at 10:56:17
DNS: 192.168.1.254

That is not an ISP DNS Address.....


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#3
October 6, 2009 at 12:01:04
If the ISP is using the same Class C private IP addressing scheme the OP is using, then 192.168.1.254 could very well be the DNS address.

My LAN at home is using the same iP addressing and my router's IP is 192.168.1.254 so all my DHCP clients show that same IP as their DNS as well as Gateway address and all work just fine. The SOHO Router handles passing requests outside the local zone to the ISP's DNS address as is configured on the WAN side of my router.

If my ISP were using 192.168.1.0 for their IP addressing, I wouldn't be using that on my LAN, I'd go with the Class A or B private so as to not have any confusion.


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Related Solutions

#4
October 6, 2009 at 12:01:43
@RTA: I'm connecting it to the dsl modem's ethernet port

@Pater: thats what it says on the network map when I access the router.

What should I do?


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#5
October 6, 2009 at 12:05:25
You might want to call your ISP and confirm if 192.168.1.0 is the correct IP addressing scheme that they're using. Confirm DNS and Gateway IP's with them too.

It strikes me as odd that an ISP would use the private Class C address space considering that's pretty much the default for every SOHO router made in the world. You might have something misconfigured, I highly recommend calling your ISP at this point.


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#6
October 6, 2009 at 12:29:34
@Curt R: I access the modem it says the following.
IP Gateway 151.164.185.18
DNS Servers 68.94.156.1 dnsr1.sbcglobal.net
Modem IP Address 192.168.1.254

Is the ip gateway or the dns server the problem?


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#7
October 6, 2009 at 12:46:18
more info from my modem that I don't understand haha
Default Device IP Address 192.168.1.64
DHCP Default Gateway 192.168.1.254
WAN IP Address 75.48.40.7
WAN Default Gateway 151.164.185.18

and under IP Route Cache Table
Net Addr:192.168.1.254
GW:192.168.1.254


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#8
October 6, 2009 at 12:51:25
I suspect your modem may very well be a combo device that is a modem and a router at the same time. What is the exact make/model of the modem?

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#9
October 6, 2009 at 13:01:42
2 Vendor ID 002492
3 Model Number 2210-02
4 Friendly Name Motorola Netopia 2210-02 ADSL Modem
5 Model Description Single Port Ethernet Modem
6 Model Name 2210-02
7 Serial Number 157084235920

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#10
October 6, 2009 at 14:19:10
So your setup is:

Phone Line
>
Motorola Modem
>
Asus Router
>
PC/Laptops

If so your IP addressing is AOK and it may well be a Phone Line Problem or are you on Cable ??


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#11
October 6, 2009 at 16:22:28
its not cable...but would a dry loop affect it?

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#12
October 6, 2009 at 18:17:00
I think Curt R is on the right track. If your modem is actually a modem/router, then you effectively have two routers at this point which is causing the issues. You generally should be able to tell if the modem is also a router by looking at the number of Ethernet ports on it. More than one, it's probably a router. However, to be sure:

Remove the new router you have and connect your PC directly to the modem. Verify you can access the Internet (just as before all this). Then use the command prompt and ipconfig to see what address is assigned to your computer and also use a site like whatismyip.com to see what your external IP is. If the IP assigned to your computer starts with 192, then your modem is also a router. You should be able to log into the modem's web based setup and disable this functionality.

You may also want to verify that your current router is setup properly. With DSL, you need to configure the WAN port (sometimes called "Internet") in the router's web based configuration to use PPoE.

-Ryan Adams

Free Computer Tips and more:http://RyanTAdams.com
Paid Tech Support: Black Diamond


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#13
October 7, 2009 at 05:28:46
I just had a look and it is a combo unit with a router built in.

The simple thing to do here is give your other router the following config on the LAN side:

IP: 192.168.1.253
SM: 255.255.255.0
Gateway: 192.168.1.254
DNS: 192.168.1.254

Disable DHCP on this device.

Plug the network cable from the Motorola into a LAN port on the downstream router and plug a client into that second router and see if it doesn't get a proper IP and start accessing the internet correctly.

Alternatively, you could purchase a switch, plug the cable from the router into the switch and clients into the switch also and they'll work with no configuration on the switch.


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#14
October 9, 2009 at 15:21:12
I have given up on this issue...

What kind of switch am I look for? a desktop switch? any recommendations?


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#15
October 9, 2009 at 16:08:01
The second router you bought includes a switch in it. All you need to do is disable the "DHCP Server" options on it, and then connect one of the LAN ports on it, to the LAN port on your modem/router. The remaining LAN ports can then have computers connected to them. You will not be using the "WAN" or "Internet" port on the router you just bought.

-Ryan Adams

Free Computer Tips and more:http://RyanTAdams.com
Paid Tech Support: Black Diamond


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#16
October 9, 2009 at 16:57:04
You have two scenerios that would work.

If connecting your router to the combo modem you put these ips in
wan 192.168.1.253
gateway 192.168.1.254
dns 68.94.156.1
lan 192.168.0.1 <-note the different subnet. You can't have the same subnet on wan and lan as given in previous example.

enable this routers dhcp server to serve out the following for the lan
192.168.0.2-254
gateway 192.168.0.1
dns 68.94.156.1

2nd scenerio would be to connect the router combo lan port to a lan port on your router [as referanced by RTAdams89] This turns your router into a glorified switch [and wireless AP if its a wireless router]

config is as follows

no wan ips
disable dhcp server
assign it a static ip of 192.168.1.253 so you can manage it via the lan.

Ip will flow from the combo unit [if its dhcp server is enabled] to all your lan clients.

Depending on isp and if the serialize the connection to your pcs mac address you may need to clone your pcs mac address to the routers wan interface concerning scenerio 1

Do understand with the router/combo lan ips not being public you will not be able to host a web page or do port forwarding. You can only do those if the address you get is public.


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#17
October 10, 2009 at 13:08:47
My modem/router doenst have a lan port

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#18
October 10, 2009 at 21:56:59
The "LAN" port refers to the Ethernet port that you would normally use to connect one computer to the router/modem.

-Ryan Adams

Free Computer Tips and more:http://RyanTAdams.com
Paid Tech Support: Black Diamond


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#19
October 11, 2009 at 10:31:36
Alexl, of course it has a lan port. All modems/routers etc have an input and an output. Input is wan [wide area network] and output is lan [local area network]. You may also think of you lan port as the "gateway"

Make sense?


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#20
October 11, 2009 at 14:00:40
Oh i see.

So I connected the router through the lan and close the dhcp, but now the problem is that only one of us get to use the internet, whenever one of us connects to the asus router he gets an error saying there is conflicting ip-same ip as his computer. What is wrong now? :(


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#21
October 12, 2009 at 08:27:36
I gave you two setups. Which did you choose? I am thinking you chose scenerio 2 but want to confirm.

You have no ip entries in either pc? both set to get ip automatically?


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#22
October 12, 2009 at 13:29:42
yes I chose the 2nd one, but I can't configure it. If I'm to give the asus router a static ip it requires me to make a wan ip, submask, and gateway.

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#23
October 12, 2009 at 13:32:26
you are on the wrong page concerning the router setup. You are on the wan page. You need to be on the lan page. In scenerio 2 you are not using the wan port so it requires no configuration.

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#24
October 12, 2009 at 17:24:08
the lan page doesnt have a static ip configuration

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#25
October 13, 2009 at 07:24:55
*sigh* sure it does. What are you putting in for lan gateway??? That is your ip assignment.

To review;
you do nothing on the wan page
you put 192.168.1.253 in for gateway
you disable dhcp server
you connect a crossover cable from router1 lan port to router2 lan port
you save the settings and restart the router to load the new settings.


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