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Cable Modem and Netgear Wireless Router not routing

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I just started with a cable co ISP. They provided a Scientific Atlanta DPC2100 modem and I have had a Netgear WGT624v2 lying around that I thought I would put into use. After much back and forth with the CableCo (I had to convince them that they had a real problem at a node that caused their service to be intermittent at best) they found their loose screw and tightened it;-> .. and now the modem signal is strong and regular. I can connect a laptop to it and it works fine. But when I connect the router everything appears OK but it won’t route data originating from from my PC. It obtains the IP address and DNS servers from the ISP fine using it’s internal DHCP client. I set the local network to offer DHCP services internally and that works fine as well. But when I check the Netgear router statistics it shows the LAN transmit and receive but only receiving on the WAN. I tried decreasing the MTU – nada… The cable co won’t give me support cuz ?t ain’t their product” .. and I haven’t found an equiv problem purusing tech repub.. The thing is I know the router works because I can configure it to run off my 2-Wire DSL modem and it works fine.. Wireless and wired.. Any ideas? Thx!

and BTW – the Internet lite on the Netgear is flashing like crazy. hmmm…

oh yes – sorry about entering this as a discussion – I realize it is a question but messed up before submitting it..

Topic

1st Prob Solved.. But now 2Wire Broadband disconnectable?

In reply to Cable Modem and Netgear Wireless Router not routing

OK This is one of those daah things.. Everything was configured fine.. It turns out that you have to have a bit more patience than I normally do.. In order to get the router to properly connect and route data throught the cable modem I had to allow the cable modem to fully reboot (a few minutes) WITHOUT having the router connected – and THEN connect and cold start the router. That’s it. So now the next conundrum – The cable modem connection has been up solid for 2 days now and I have the sense that it is finally “reliable” enough to dump the DSL line so I’m going to shut down the DSL service… but the 2-WIRE DSL modem is mine to keep and I have a good use for it **IFF** I can keep the wireless component and hub active without a DSL broadband connection.

Because the cable modem is located at the far end of our apartment (which is also where the Netgear wireless router is located), the wireless signal no longer propogates throught the entire apartment. I have a cat5 cable running to the middle of the apartment where the DSL modem is though. So I thought why not shut down the DSL modem DHCP services, but leave the WIRELESS part active and see if the wireless connection will pick up a DHCP address from the NETGEAR router in the back room?- Guess what — It worked. I was able to connect to the DSL wireless modem and the DHCP request was passed throught the LAN to the Netgear which set the IP address on my laptop at the other end of the apt and it worked fine… – until I pulled the DSL phone line out of the modem. As soon as the DSL broadband light went red the wireless connection and hub stopped funtioning even thought the LAN light was still green. So here’s the question:: Is there a way to disable the broadband on this 2Wire HomePortal 1800HG, but keep the WIRELESS and LAN services active so that I can continue to use the modem to extend my little wireless network after I shut down the DSL service?? Ideas – THX

LayerOnLayer

In reply to 1st Prob Solved.. But now 2Wire Broadband disconnectable?

I appreciate your method of approach and walk through, reproduction an error is your problem…………… You’ve isolated it!

“…..until I pulled the DSL phone line out of the modem.”

1)A switch is a switch
2)Can you problem MAC address

and
“As soon as the DSL broadband light went red the wireless connection and hub stopped funtioning even thought the LAN light was still green.”

1)Look closley at the network layers what layer is failing
2)Component compatibility, issues look at mfg sites
3)Uplink or cross if the hub componet isn’t active
4)No syc with server or open line, what is happing electrically

Hope you can resolve your problem and share the results. Its always hidden from view but not from sight!

Danermouse

Do you know that this “question” belongs in the “Questions” forum?

In reply to Cable Modem and Netgear Wireless Router not routing

The “Discussion” forum is for matters of general discussion, not specific problems in search of a solution.

Post problems such as this to the “Question” forum, rather than the “Discussion” forum. There are those who specifically seek out problems in need of a solution, and that’s where they go to look for such.

Additionally, the “Question” forum provides for your rating the helpfulness of responses, so that others with the same or similar problem might be able to more easily find a solution.

Is there a way to change a discussion to a question

In reply to Do you know that this “question” belongs in the “Questions” forum?

Yes I realized that about 20 seconds after I pressed the submit button (and said so in my first post). I’d gladly move it but I am new to this forum and don’t know how.

– B

Unfortunately, no.

In reply to Is there a way to change a discussion to a question

Despite the fact that TR and many of its members of long standing, known as “TR Insiders,” discussed the many problems that existed with the manner in which Questions were here handled, along with suggested ways of better dealing with such, TR generally ignored our advice, choosing instead to simply fold the old “Q & A” forum system into the “Discussions” system, with no means of your editing anything more than the Title & Body of your post.

If you wish to remove a misplaced Question or Discussion, the best you can do is to copy your Post(s) into a newly created Question or Discussion; and, where appropriate, so as to not lose continuity where others have begun to offer useful or potentially useful suggestions, edit the original misplaced Question or Discussion so as to replace the Title and/or Body with either a link to the new Question or Discussion, or, if no forwarding is required, with, for example, a single meaningless character

Cable modem by Scientific-Atlanta, Inc. and Netgear

In reply to Cable Modem and Netgear Wireless Router not routing

Hi –

I realized that the date for this post is 2/10/07, but I’m in dire need to get my wireless router to work with my modem, too.

Ever since I got hooked up with a line for my phone, my modem won’t communicate with my my wireless router when I’ve gotten it hooked up to the computer through the router and then to the modem.

Couldn’t anyone tell me why?

I can’t even see my default access for my wireless router. It just says “The page cannot be displayed.”

I don’t even know where to start to get help.

My cable company said the same thing, that it’s not their product and they don’t support it.

NETGEAR wants me to pay for support because it is pass the warranty. But it doesn’t make sense to pay them $36 something when a new wireless router would cost just about the same and I would have more than a one time support for that price.

I just need to know if the router is the problem or the modem.

Cable modem by Scientific-Atlanta, Inc. and Netgear

In reply to Cable Modem and Netgear Wireless Router not routing

Hi –

I realized that the date for this post is 2/10/07, but I’m in dire need to get my wireless router to work with my modem, too.

Ever since I got hooked up with a line for my phone, my modem won’t communicate with my my wireless router when I’ve gotten it hooked up to the computer through the router and then to the modem.

Couldn’t anyone tell me why?

I can’t even see my default access for my wireless router. It just says “The page cannot be displayed.”

I don’t even know where to start to get help.

My cable company said the same thing, that it’s not their product and they don’t support it.

NETGEAR wants me to pay for support because it is pass the warranty. But it doesn’t make sense to pay them $36 something when a new wireless router would cost just about the same and I would have more than a one time support for that price.

I just need to know if the router is the problem or the modem.

Start with the router

In reply to Cable modem by Scientific-Atlanta, Inc. and Netgear

Not sure why a phone would affect things unless it is VOIP… (Is it?) besides that
Here’s some things you can try. I assume you have one computer connected to the modem and it is working. First open a command window (start->run->cmd) and type inconfig /all write down your IP address, gateway and DNS address (usually the same). Now shut down and disconnect the ethernet cable from the modem. The only reason you’re writing this IP info down is to make sure you use a different network for your internal router. The router will communicate on the modems network and all your computers will run off your router (not the modem).

Now connect your computer (ethernet) directly to the router (forget the modem for the moment). Do a repair/renew on the network interface (properties on “My NEtwork Places”to see the interface)[or just restart the computer might work]. If the default router settings are working the router should give you an IP address. Right click the network interfact and Check the status – then click on support to see your IP address. Make note of the first 3 quads – probably something like 192.168.0.something. If you get this far then open a browser and try those same 3 quads with either .1 or .254 or .255. One of those should open up the console on the NETGEAR router. Here’s where the important stuff is. Go to BASIC SETTINGS. Check off :No login is required. For Internet IP Address check off “Get Dynamically from ISP”. Same for DNS. You may have to find out the MAC address of the router and enter it in the next field if the default doesn’t work. For the time being leave it alone. click “apply”.

Go to the Advanced ->Lan IP Setup section.
You must define a LAN network different from the one that connected you to the modem. If the IP network (First 3 quads) you wrote down when you checked the modem are different than for the router then you don’t need to change the network. For LAN IP ADdress you can use 192.168.1.1 with a subnet of 255.255.255.0 (again as long as it’s different than the modem address. Forget about RIP. Check off “Use router as DHCP server” and set the starting address with the 3 network quads ending with .2; e.g. 192.168.1.2 and end with .100 (or something less than 255)

NOW go to WAN setup. Check off “Connect automatically as required” . Don’t forget to click “apply”after every change you make. Now plug the WAN connection of the router into the LAN input on the modem. Things may work now.

As background the general idea follows: The router dynamically gets it’s IP address, dns info etc set automatically by the modem/cable company. This part of the network (considered the WAN to the router) should be a different network than the internal LAN that your computers will connect to. The router in turn provides IP address info, DNS etc to your computers on your local wireless or wired network. The DNS will usually point to the router address because the router will do it’s job and route dns requests and everything else once it’s working. When you go to connect your computers they will connect through the router, not the modem. So you will be on the router’s LAN, – again – not the MODEM’s LAN..

As for the wireless stuff choose a wireless network name and set up some kind of security if you like: 64 bit or whatever. Let it choose the key from the selection below. Write it down because you will need it when you try to connect from your wireless PC’s.

If the phone is an IP phone with service provided by the cable company you may need a hub to connect both the phone and router to the modem.

That’s about it. Hope this helps!

– Bob

Netgear DG834 and DPC210 Cable modem

In reply to Start with the router

Dear Bob,
I know your post was way back but I really need help in this one.

I’m trying to do the same with a netgear dg834 router and a dpc2100 modem. That is, set up the router as an access point for my computers after connecting it to the cable modem.

I quoting from your post

“NOW go to WAN setup. Check off “Connect automatically as required” . Don’t forget to click “apply”after every change you make. Now plug the WAN connection of the router into the LAN input on the modem. Things may work now.”

Where is my WAN connection?? I only have the 4 LAN ports and the rj-11 ADSL connection plus the power connection in my router.

Please help me find a solution.

Thanks a lot.

Nidal

Any solution?

In reply to Cable Modem and Netgear Wireless Router not routing

I have a strangely similar problem, having traded in my old model yesterday for a new Scientific Atlanta modem issued by Comcast. Now I have Internet access via ethernet to the modem but not via the router. Did you get any good advice in response to your post? Comcast’s tech support suggested that my existing router might not be compatible with the new modem and that I should buy a new router through Comcast, but they would not be specific about what, if any, problem might be the source of incompatibility.
Thanks,
Mary Anne

Try here

In reply to Any solution?

http://techrepublic.com.com/5208-6230-0.html?forumID=102&threadID=211122&messageID=2170526

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