I picked up a used Optiplex GX260 PC for use in GPS updating, etc. I connected the ethernet cable to the PC; however, I cannot get a cable modem connection. My iMac works well on the cable modem, same cable I used to connect to PC (normally connected to Apple Airport).
Wizards do not detect LAN capability. Tried downloading drivers from Dell, no luck.
I surmise my ethernet hardware is inoperative in the PC. Concur, likely?
What are my other options (toss PC, USB wireless to airport, replace ethernet hardware??)?
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Re: Ethernet connection fails to cable modem
Let's do a little bit of troubleshooting and see what we find out. First I assume that you are using some kind of Microsoft operating system. (if not, let me know.)
You say that the cable is working fine. That's a good start.
If you connect your cable to the GX, do you see an orange (connectivity) and a green (traffic) light next to the adapter?
Did you check your Device Manager to see if the adapter is working? (Right-click "My Computer", choose "Manage" and open "Device Manager".You should have an entry under "Network Adapters". The on-board, standard network card is an Intel Pro/1000MT.
If there is no entry, then the adapter is faulty (or not recognized by the Operating System).
If you have an entry - is there a yellow question mark? If so, then the driver is missing. You can download it from Dell's support page here.
If your adapter is broken, you can always try to find either an external USB-to-Ethernet or wireless USB adapter or install a new network card. See example here. Make sure that you get one that also comes with a small installation frame, so it fits your housing. (look at the pics in the link.)
If your network card is fine and you have a driver already installed, it could be your network settings. Is your adapter set to get an IP via DHCP? Open your Control Panel and Network Connections. Do you see an entry there? If so, right-click it and choose "Properties". Scroll down to "Internet Protocol TCP/IP" and double-click it. Are both radio buttons set to "Obtain...automatically"? If not, change that and click "OK" to close all related windows.
If you have any more questions or need more help with any of the steps above, just come back here and leave a comment - I'm happy to help.
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That slot is actuall not accessable externaly. The open bay is for the AGP slot right next to it. Directly to the left of that slot you have a riser board the provides 2 additional horzontally mounted pci slots. You'll have to use one of these.
FYI for those people trying to use a ethernet and usb cable from a cable modem - it may work for a while but it won't work forever - your ISP will only allow one IP address out of the modem unless you pay for additional addresses (then you need a switch). Each device you have on the modem is fighting for that IP and eventually it will just quit working (if it works at all).
If you want more than one computer on your network (on the Internet or sharing printers/files, etc) then you need a router or a gateway (cable modem/router combo which I DON'T recommend).
This modem can be used via one of two ports:
ethernet port (network port)
or USB port
If your computer has an ethernet port, it is perferable that you connect through this as you will have better performance. If you don't then you can get an ethernet card installed inside the CPU.
If it's not possible to connect via this connection and you have to use the USB, then you will need drivers.
This website gives you full instructions on how to use this particular modem and also gives you the USB drivers if needed.