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can't get router to work, please help

P

puck

Member
Ok I have 3 boxes running win2k pro, and I had the cable modem connected directly to one computer. I then shared the internet connection with another nic to the second computer and everything worked great. Except I couldn't access the internet with the third computer.
Now I have a D-Link DI-714 broadband router in the mix and I can't see the internet. The local connection to all three computers works fine though. Is there some special setting required for Comcast.net? I never had to provide any authentication before with the two computer setup, not even the computer name mattered.
I've read some articles regarding comcast and nat routers and how they were supposedly not allowing them. I've also heard that they really don't care, they just aren't providing any support. I would really like to hear from anyone using a router with comcast.net service.
 
So all of your pc's are plugged into the router now, right? If you had a pc-to-pc network before, then you were using cross-over cable. Are you sure you have all straight cables from the pc's to the router? Next, you'll have to make sure you let the router assign IP's to the pc's. There was a tool in the 9x OS's for releasing and reassigning IP's. WINIPCFG. I don't think this command works in 2K though. Anyway, I'd make sure I had the right cables, then figure out how to release/renew the ip's for each pc. I'm sure someone knows how to do it in 2K/XP. WINIPCFG does not work in XP either.

Edit: Just found some info about a command called ipconfig. Does that work with 2K?
 
The router auto-detects cable type. The utility you are thinking of is ipconfig. DHCP is enabled on the router, I can access files between computers but I can't see the internet connection. This seems to be an issue with the router setup and comcast.net.
 
Go Into the control Panel Networking...and the properties for the Nic Card bound to TCP\IP and make sure it is set to Automatically detect IP address.

Make sure to also disable ICS Do not uninstall it ...I have pooched a couple of my computers ability to access the net by totally removing ICS...reinstalling ICS did not help either.


Ping the Client Computers on the Lan to see if you have proper connectivity

goto Control panel--->Internet options Under connections and make sure it is set to use the LAN and also set to detect Internet settings automatically


You Can E-mail me if you need more help

Ausm
 
"There was a tool in the 9x OS's for releasing and reassigning IP's.
WINIPCFG. I don't think this command works in 2K though. "

In Win2K use the command prompt utility IPCONFIG.

ie:
c:\ipconfig /release
c:\ipconfig /renew

or use:
c:\ipconfig /?
for detailed usage info.

Is Normal Windows Sharing working (NetBEUI)?

Are you sure that your Cable/DSL Modem is connected to a uplink port on the Router? Or that you've used a cross over cable between the Cable/DSL Modem and the router.

Thorin
 


<< or use:
c:\ipconfig /?
for detailed usage info >>



ipconfig /all


double check your router setting? some broadband ISPs require login and password. youll have to enter that in into the router.
 
I've never had a cable modem but I've heard they require a mac address to work? Now, correct me if I'm wrong, but since it was plugged directly into 1 machine and now into the router, didn't the MAC address change and thus you have to call the cable company with the new address?

Just a thought......
 
I have a D-Link router also. Here's some things to try.

Is your router able to obtain an IP address from Comcast? If not:

Have the D-Link clone the MAC address of your PC that was originally connected to Comcast directly. There is an option to do that from the admin menu. Since you say that the computer name didn't matter before, the MAC address is probably how Comcast validates you as authorized to access their network.

If that doesn't work, try entering into the router the computer name/ID that Comcast gave you to use (if they gave you one, I use Cox and it's required)

Next, make sure the router is set to obtain an IP address from Comcast DYNAMICALLY. Unless Comcast assigns you a permanent IP address this is the setting you need.

Remember, after you change any settings you have to reboot the router (using the button on the admin menu) before any changes will take effect. After this, be sure to select Release, and then Renew to have the router request an IP address from Comcast.

If the router IS able to obtain an IP address but you can't surf the web:

Make sure you opened all the ports necessary to gain access to the web. In this instance you must open port 80 from the advanced settings of the router. All ports are blocked by default if I remember correctly.

Good luck. Let us know your status.
 
Thanks for all the replys. After a few minutes on Dlink phone support, the problem was fixed by power cycling the modem. I thought I had done that already but I think I had just turned off the power button instead of unplugging it from the wall. Plugged it back in and presto! All works sweet now.
A few notes for anyone else that cares on Comcast's new DHCP internet:
No MAC address required
No computer name/domain name required
No login/password required
Leave everything on "automatic" settings for IP (address, gateway, DNS)
Save settings on router, then unplug cable modem for at least 30 sec. and plug back in.
 
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