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[Mikef2000]

I just tried installing my brand new router, and everything goes along great, except that when I plug my router to my DSL modem, my DSl modem's "Ethernet" light doesn't turn on, and in my D-Link Router it appears as if the ethernet cable to the modem is "disconnected" I have tried using three different working ethernet cables(including the cable that came with the router) and I get the same results.

Anyone have any idea what's wrong?

[LookIntoMyEyees]

Tried reseting the modem? guess that's not the issue. Mhmm its probably your Dsl Modem or the Dgl 4500 is faulty.

--
Chris

[FurryNutz]

check different cable? Does the DSL modem have it's own internal router? If so, its recommended that you bridge the DSL modem to the 4500 router so you can fully take advantage of the 4500's features and the 2 routers wont have problems processing dual NATs. Will cause problems gaming and connecting to host services. Yes it should work with the dsl modem out of the box. Check cables 1st and make sure they are straight through cables. Let us know what you find.

[Trikein]

As always make sure your power cycling your modem the network in the correct order. Just think of "Mr Computer" as in Modem, Router, Computer. That means have everything turned off. Run the ethernet from the modem into the internet port on the router. Turn on the modem, wait for how ever long it takes for the modem to connect(30-45seconds), then power on the router. Last, turn on the computer.

Its more important for systems that use DHCP, since the CMTS doesn't verify by username and password like PPPoE but by the mac address registered when he modem boots up. So if your changing the ethernet connection (to say a new router) you have to power the modem to get it to registered the new mac address of your router.

[Mikef2000]

Thanks for you replies. It appears as if I got stuck with a defective router. I have verified everything and it all comes back to the Internet ethernet jack in the router not responding. I'm going to change it in for a new router.

[Trikein]

Hmm, ok. Thats very rare in the sceme of things, but if you say you have isolated it, then good job and good luck. Let us know how it works out. 

[Mikef2000]

Hmm, ok. Thats very rare in the sceme of things, but if you say you have isolated it, then good job and good luck. Let us know how it works out. 

Do you have any other ideas? You think it's not a hardware issue?

I have already checked with different cables, resetting the router, installing latest firmware, your power cycling order. If there is anything else I'm missing I'd appreciate any help.

Returning this router for a new one is going to be a pain in the ass for me, so I'd like to avoid that if possible.

[Trikein]

Hmm, well its all about isolating. Try this.

1. Connect direct to the modem and confirm you can go online.

2. Make sure the DGL-4500 is turned off.

3. Use the same Ethernet that is going from the modem to the computer, to connect the "internet" jack on the DGL-4500 to your computer.

4. Start > Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings (Top left) > Right click on Local Area Connection and left click on Status > Notice the "Media State"

5. If "Status" isn't available, then your right, the Ethernet port on your router is dead. If it says "Enabled" then the port is live, and at least able to pass a charge along the first and second layer.

6. If the port is live, then that pretty much leaves a configuration issue in the modem, or the router, or some other very unlikely hardware problem

[Mikef2000]

You're a genius!

For some odd reason after trying more than 20 times, it worked.


If it makes any sense, connecting the computer to the router's ethernet jack "woke" up my router. After that I connected it to my router and it just worked.

Thanks!

[FurryNutz]

Yaaaaa, good to hear its going.. Wonder why it didn't work right off the bat though. Odd. Hope you enjoy it.

[Trikein]

I have a feeling this has something to do with the "Network Discovery" bug in Windows 7. Not sure how, but thats my guess. Either that or unicorns.....hmm..tough call. Glad it work though. LOL

[Mikef2000]

Looks like I spoke too soon. The router worked great for most of the day, but at night it was acting up a bit, so I did the my normal  power down the modem + router routine and now it's back to square one. The router now doesn't seem to turn on the ethernet connection when it's connected to my modem.

 

[Trikein]

Ok, I can think of three possibilities.

1. There is a bent pin on the "Internet" port on the router. If that is the case, you should be able to see it, and you should return it with a RMA. Even if you "unbend" it, it is bound to give you some sort of intermittent connectivity issue.

2. What are you seeing as "disconnected" on your DGL-4500's status page? The cable status or the network status? Because if your cable status is good, and your network status isn't, that probably doesn't have anything to do the Ethernet connection, but rather the network connection (IE the IP address it is trying to use) isn't activating. If that is the case, I would bet your modem gives out a static IP and its the settings on your router. That might even explain why my "fix" may have worked temporary because your router clones the static IP settings it needed to connect properly to the modem.

3. Your ISP might only allow your IP to be assigned to a certain mac address. This is rare these days, mostly with satellite ISP's, but it can happen. If that is the case, you need to clone the Mac of your router to be your PC's.

So what I would suggest is call your ISP. Ask them:

A. Do I have a static IP? And if so, what is my IP and what is my connection type (PPPoE vs PPPTP vs other).

B. Am I only allowed one device to be connected to my modem, and is that connection assigned to a specific MAC address?

C. How do I gave access to my modems gateway? As in what IP address, username, and password would I use to access my modems status page, features, etc. They might have different names, but its where you type in "192.168.something.something" into your address bar.

[Mikef2000]

Thanks again for helping me out. Below are my replies to your queries in bold text.

Ok, I can think of three possibilities.

1. There is a bent pin on the "Internet" port on the router. If that is the case, you should be able to see it, and you should return it with a RMA. Even if you "unbend" it, it is bound to give you some sort of intermittent connectivity issue.
I'll check this when I get home, but I doubt this is the case. Since the routers Internet ethernet port works EVERYTIME I connect my PC to that port.

2. What are you seeing as "disconnected" on your DGL-4500's status page? The cable status or the network status? Because if your cable status is good, and your network status isn't, that probably doesn't have anything to do the Ethernet connection, but rather the network connection (IE the IP address it is trying to use) isn't activating. If that is the case, I would bet your modem gives out a static IP and its the settings on your router. That might even explain why my "fix" may have worked temporary because your router clones the static IP settings it needed to connect properly to the modem.
When I say "disconnected", I mean that's what appears on the router's OLED display on the relevant status screen( internet connection).

3. Your ISP might only allow your IP to be assigned to a certain mac address. This is rare these days, mostly with satellite ISP's, but it can happen. If that is the case, you need to clone the Mac of your router to be your PC's.
I'll check this out, but I doubt this is the case because I had a 7 year old Linksys WRT330N router on that modem, when that died, I replaced it with a Linksys WRT320N router, but I was so underwhelmed by that router that I bought the D-link DGL-4500. My modem communicates perfectly with the new Linksys, but not with the D-Link.

So what I would suggest is call your ISP. Ask them:

A. Do I have a static IP? And if so, what is my IP and what is my connection type (PPPoE vs PPPTP vs other).
I do have a Static IP. I have the IP, Gateway, and DNS infor with me, and they are all inputted correctly in my D-Link(and worked fine yesterday when my Router was working).

B. Am I only allowed one device to be connected to my modem, and is that connection assigned to a specific MAC address?
I'll ask this.

C. How do I gave access to my modems gateway? As in what IP address, username, and password would I use to access my modems status page, features, etc. They might have different names, but its where you type in "192.168.something.something" into your address bar.
I'll ask this, but I doubt they'll give it to me. I live outside of the states and customer service here isn;t exactly very helpful.

[Trikein]

Ok, so we can rule out the port. We also know the router boots past post (power up squence) and lets you access it's gateway, so the rules out a bad chip, bad PSU, circuit board, wireless antennta, and so on. Not a whole to go wrong. Also, the fact that it worked for even a little bit makes it very unlikly its hardware. That really points to a configuration issue. Sooo..

Short of anything private (public IP, MAC, passwords, etc) tell me as much as possible about the configuration you had with the Linksys. Who is your ISP, what kind of connection method do they use, what kind of modem do you have? How did you configure the old linksys, CD or manually? I am going by the emulator found here. Any info you can give would be great. One thing that I see right off the bat is the Linksys when set to PPPoE defaults to a Static IP while PPPoE on the DGL-4500 gives you the option to pick Dynamic or Static. That matched the symptom too.