Networking Nightmare

Nytro2413 · 18 Nov 2009

ok so heres what i want to do, i have a wireless antenna on my desktop to pick up public wifi (in iraq only way to get on the net) and i want to network my desktop with my laptop via direct link with a network cable and use ics for my laptop. The problem is when i connect the network cable, i get an unidentified public network and both computers dont see each other in nework. if theres no way to share the connection though a wifi adapter thats no big deal but do want to share file between both computers. both computers have windows 7 build 7100 the network adaper on the desktop is
(Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller)
laptop is
(Nvidia nforce Networking controller)
not sure what info you guys need so just let me know and ill get it to ya
if you guys can help me it would be awsome ive been trying to figure this out for about a week now.

zigzag3143 · 18 Nov 2009

Nytro2413 said:

ok so heres what i want to do, i have a wireless antenna on my desktop to pick up public wifi (in iraq only way to get on the net) and i want to network my desktop with my laptop via direct link with a network cable and use ics for my laptop. The problem is when i connect the network cable, i get an unidentified public network and both computers dont see each other in nework. if theres no way to share the connection though a wifi adapter thats no big deal but do want to share file between both computers. both computers have windows 7 build 7100 the network adaper on the desktop is
(Marvell Yukon 88E8056 PCI-E Gigabit Ethernet Controller)
laptop is
(Nvidia nforce Networking controller)
not sure what info you guys need so just let me know and ill get it to ya
if you guys can help me it would be awsome ive been trying to figure this out for about a week now.

What kind of cable are you using between them. If there is no router it needs to be a "crossover" or null modem cable

Ken J++

Darryl Licht · 18 Nov 2009

True... if you just have a pc to pc connection via single cat 5 cable it must be a x-over cable! Either buy one, or find someone to make you one. If both are gigabit cards might as well get a cat6 gigabit capable x-over.

Or or get a hub or switch and a 2nd straight through cable... <---gigabits better!

For more info: Ethernet crossover cable - Wikipedia, the free encyclopedia

chev65 · 18 Nov 2009

1. Go to Control Panel > Network and Internet > Network and Sharing Center

2. Under Change your networking settings, click Set up a new connection or network

3. Select Set up a wireless ad hoc (computer-to-computer) network

4. Enter your Network name, and enter a Security key if wanted

5. Check the box for Save this network and click Turn on Internet connection sharing on next page

With most modern NIC's a crossover cable shouldn't be needed for ICS as this process can now be done by the NIC driver.

I used ICS years ago and never needed a crossover cable.

This article might also help. http://windows.microsoft.com/en-US/w...ection-Sharing

Darryl Licht · 18 Nov 2009

chev65 said:

1. Go to Control Panel > Network and Internet > Network and Sharing Center

2. Under Change your networking settings, click Set up a new connection or network

3. Select Set up a wireless ad hoc (computer-to-computer) network

4. Enter your Network name, and enter a Security key if wanted

5. Check the box for Save this network and click Turn on Internet connection sharing on next page

With most modern NIC's a crossover cable shouldn't be needed for ICS as this process can now be done by the NIC driver.

I used ICS years ago and never needed a crossover cable.

This article might also help. Using ICS (Internet Connection Sharing)

Uh ummm... the diagram in your instruction link shows a hub, which is what performs the x-over function.

Nytro2413 · 18 Nov 2009

i tried both an x-over and a regular cable both give me the unidentified network. i would like to get both computers seing each other file sharing working before i worry about the internet...i might have made the xover cable wrong ill try and make another one...when i do connect the computers with the cable. if everything was working right, how whould it pop up will it be unidentified or should it switch to private/home.

Darryl Licht · 19 Nov 2009

OK... relax we here at SevenForums will try to help you solve this.

Perhaps we should start with the basics... once you setup ICS and shared the wireless connection on your Host PC, then you rebooted it and the laptop while connected with the x-over cable? Your host PC is the desktop with the wireless Internet connection and it also functions as whats known as a DHCP server... it gives both PCs a network IP address... rebooting is a prety easy way to do it.

You can also open a command prompt and type ipconfig/release which will release any IP addresses, and then ipconfig/renew to force a new address from the DHCP.

Whether you reboot or use the command prompt... please tell us what are the new IP addresses on each PC?

This article applies to Win7
Set up a shared Internet connection using ICS (Internet Connection Sharing)

Also, apparently you can do this with wireless alone now (no wires)...
Using Wireless Hosted Network and Internet Connection Sharing (Windows)

torrentg · 19 Nov 2009

Hey. Depending on equipment in use, a crossover cable is not necessary. Most newer hardware auto adjusts and can easily cope without the need for one. Just wanted to throw that out there because I learned about it recently myself.

azharalibuttar · 19 Nov 2009

here are few question for you;
what about the IP Addresses you assigned to both computers?
Can you ping both computers from one computer?
what about the firewall status?

Darryl Licht · 19 Nov 2009

torrentg said:

Hey. Depending on equipment in use, a crossover cable is not necessary. Most newer hardware auto adjusts and can easily cope without the need for one. Just wanted to throw that out there because I learned about it recently myself.

One thing for certain in this industry... you can never know it all! I did a quick google and I never knew auto crossover was built into gigabit (1000BASE-T)ethernet! We always used to be forced to use a x-over for just 2 PC's. I haven't dealt with a network that small in I cant remember!

Many newer Ethernet NICs, switches and hubs automatically apply an internal crossover when necessary. This feature is known by various vendor-specific terms, e.g., Netgear calls it Auto uplink and trade; and other common vendor terms include Auto-MDI/MDI-X, Universal Cable Recognition and Auto Sensing. This eliminates the need for crossover cables, obsoletes the uplink/normal ports and manual selector switches found on many older hubs and switches, and vastly reduces installation errors, especially by non-technical users.

Automatic MDI/MDI-X capability is specified in the 1000BASE-T standard, so straight-through cables will work in almost all cases. But it is optional, so a crossover cable is needed if neither of the connected devices supports it (or the function has been disabled). Unlike the crossover cable described above, with only pairs 2 and 3 swapped, a 1000BASE-T crossover cable also has pairs 1 and 4 swapped.