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No connection when connected from modem but wireless works

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No, if Autoconfiguration IP Address…. : 169.254.191.114 is still there then you are still not getting a IP address from the modem DHCP server.

What is the make and model number of your modem? I still think there is a problem with it, either the new one is defective the same way the old one os or it is not setup correctly.

What IP address does ipconfig /all get on the computer connected wirelessly?

No, if Autoconfiguration IP Address…. : 169.254.191.114 is still there then you are still not getting a IP address from the modem DHCP server.

What is the make and model number of your modem? I still think there is a problem with it, either the new one is defective the same way the old one os or it is not setup correctly.

What IP address does ipconfig /all get on the computer connected wirelessly?


IP Address. . . . . . . . . . . . : 192.168.1.5



As for the modem, its an RCA, model DCM425
Serial number 00730-439102882
MAC 0011E307BF2D
I found the manual. The RCA DCM425 modem doe not have wireless support so the wireless connection you are talking about has got to be through a router, not directly via this cable modem.

This modem does support simultaneous USB and Ethernet connections as long as the cable company allows it. It's just like I stated for the cable modem I have.

How are you trying to connect? Are you using USB or Ethernet? I would guess USB as the Ethernet connection is probably feeding the router that is providing the wireless access.

Need the above info to continue with this …

Where is that router located? I'd suggest moving it near the cable modem then connecting to the router via Ethernet Cable rather than trying to use USB.

The modem manual is here: http://www.simplehelp.net/images/cable_mod…/RCA_DCM425.pdf

Look at step 6 on page 20 for installing on XP via USB. I'll wait for your response before continuing.

I found the manual. The RCA DCM425 modem doe not have wireless support so the wireless connection you are talking about has got to be through a router, not directly via this cable modem.


Yes its through a Netgear wireless router.. I'm sorry for the confusion.

This modem does support simultaneous USB and Ethernet connections as long as the cable company allows it. It's just like I stated for the cable modem I have.

How are you trying to connect? Are you using USB or Ethernet? I would guess USB as the Ethernet connection is probably feeding the router that is providing the wireless access.

Need the above info to continue with this …


I'm trying to connect through Ethernet. The modem is connected to the wireless route with an ethernet cable, and my computer is connected to the wireless router through another ethernet cable. Even when I disconnect the wireless router and plug the ethernet cable directly from the modem into my computer, there is no connection.


Where is that router located? I'd suggest moving it near the cable modem then connecting to the router via Ethernet Cable rather than trying to use USB.

The modem manual is here: http://www.simplehelp.net/images/cable_mod…/RCA_DCM425.pdf



Look at step 6 on page 20 for installing on XP via USB. I'll wait for your response before continuing.



The wireless router is right next to the modem, already connected with ethernet cables.
Would have been nice to know that at the beginning, would have saved us some time. My fault for not asking. You could try connecting to the cable modem with a USB cable, see if that works. If so then I would say your network device (NIC), onboard or addon PCI card is bad. If it's built into the system board as most are, you can still add a new PCI network card. They are cheap, usually around $10. If it's PCI, just replace it. To install it, delete the existing network connection from Device Manager then shutdown. Put in the new card, connect the Ethernet cable to it and power up. Go to BIOS setup and disable the onboard NIC. Reboot and XP will see the new NIC, load the drivers and you should be connected. IF XP doesn't have the driver it should be on the CD that comes with the new card.

Would have been nice to know that at the beginning, would have saved us some time. My fault for not asking.


I'm sorry, to be honest I didn't know that some modems could connect wirelessly without a wireless router. Sorry about that.

You could try connecting to the cable modem with a USB cable, see if that works. If so then I would say your network device (NIC), onboard or addon PCI card is bad. If it's built into the system board as most are, you can still add a new PCI network card. They are cheap, usually around $10. If it's PCI, just replace it.

To install it, delete the existing network connection from Device Manager then shutdown. Put in the new card, connect the Ethernet cable to it and power up. Go to BIOS setup and disable the onboard NIC. Reboot and XP will see the new NIC, load the drivers and you should be connected. IF XP doesn't have the driver it should be on the CD that comes with the new card.


Ok, I'll look into finding a USB cable for the modem. Then, if that works, I'll look into a new PCI card.

Thanks again for the help!
Please let me know how you make out. One caution, I don't know if your cable company supports having a Ethernet and USB connection to their modem at the same time. Try it and if it doesn't work, call them to check.

Please let me know how you make out.

One caution, I don't know if your cable company supports having a Ethernet and USB connection to their modem at the same time. Try it and if it doesn't work, call them to check.


Well, I called the cable company, Comcast, again, they basically told me they couldnt help me and I'd have to call the folks who made the computer. Called them and was told I could only get tech support for 150 bucks for 6 months. I'm really about ready to just give up on this dayam thing.

The wireless modem seems to only have ethernet ports.. are there cables that have an ethernet connection on one side and a usb on the other? Sorry if thats a dumb question.
The USB connection is on the Cable Modem, not the Wireless Router. You would connect a USB cable from it to a USB port on your computer and see if that gives you internet access. This is strictly a test and as I said, I'm not sure it will work as I don't know if the cable company supports using both Ethernet and USB at the same time when connecting to their modem. That is why I suggested calling them. Easiest thing to do is try it and see what happens. Or …. skip all that and just buy a new PCI Network Card.

The USB connection is on the Cable Modem, not the Wireless Router. You would connect a USB cable from it to a USB port on your computer and see if that gives you internet access. This is strictly a test and as I said, I'm not sure it will work as I don't know if the cable company supports using both Ethernet and USB at the same time when connecting to their modem. That is why I suggested calling them.

Easiest thing to do is try it and see what happens.

Or …. skip all that and just buy a new PCI Network Card.



Ok, so, the problem is with my computer, not the modem. Borrowing someone elses computer, hooked it up, and its online. Guess I'll try the PCI Network Card, but the computer wont let me install new software on it (been messed up since I got a virus a while back). Lookin like I may just need a new compy.
Many PCI Network cards do not require a device driver to be installed as XP will support it as soon as you install it and boot up.

If not, what happens when you try to install the driver? What error messages do you get?

Do you have a XP install CD? If so, put it in the CD drive then click on Start then Run, type sfc /scannow and press Enter. That will run the System File Checker and replace any damaged or missing system files, may resolve your install problem.

Many PCI Network cards do not require a device driver to be installed as XP will support it as soon as you install it and boot up.

If not, what happens when you try to install the driver? What error messages do you get?

Do you have a XP install CD? If so, put it in the CD drive then click on Start then Run, type sfc /scannow and press Enter. That will run the System File Checker and replace any damaged or missing system files, may resolve your install problem.



I don't think I have the install CD. I thought I did, but looked around and I don't seem to.

Also, haven't had a chance to get a PCI card yet.
Hi Andrew. Before replacing the ethernet card, please download this: http://files5.majorgeeks.com/files/63f73cf…insockxpfix.exe


Put it on your flashdrive and run it on your problematic computer. Click the "Fix" button, wait for it to finish and then reboot your computer. See if that fixes your problem.

Secondly, please provide the exact model number of your netgear wireless router.

Lastly, if your computer still will not get on-line, please try unplugging the power from both the cable modem and the netgear router. If your cable modem also has phone service please make sure that you remove any backup battery from the device that may keep it powered when you remove the AC plug. You want to make sure all the lights go off on the unit when you unplug it. Next, plug the modem back in, wait about 2 minutes, then plug your netgear router back in. Wait about a minute then see if your computer can get on-line.

If your computer is still not getting on-line, then try powering down both the netgear and cable modem again. Unplug the ethernet cable between the netgear router and the cable modem. Power your cable modem back up, wait about two minutes. Then, plug your computer directly in to the cable modem. See if you can get on-line. It is not uncommon for the internet to not work until you power down the cable modem after plugging a different device into it. So, even though you tried plugging directly into the cable modem previously, if you didn't power it down also then the test is not reliable.

Please let me know the results of these tests.

@Ztruker, sorry to butt in. Just thought I would throw a couple more ideas out there before replacing the NIC.
Excellent!!! Good call Appleoddity!

Edit:
Why did the cable tech's computer fail the same way though? That's what sent me down the hardware failure path.

Oh well, a fix is a fix.

Edit #2: I thought Dial-a-fix would have done basically the same thing WinsockXPFix did/

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