I have an laptop running Windows XP, with wirelles netwotk on it, But I once plugged in an RJ45 cable, and since then I dont see any more the wirelles connection icon, only a LAN wired connection. I dont know how to reopen the wirelles connectivity (Also, the physical button to turn on the wirelles networkis not working) can anyone help me get back the abilety to use my wirelles netwotk? Thanks everyone!

setup network with rj45 cable
see instructions here http://www.alatec.com/info/rj45.html
regards

I first wanted to turn it on through Atheros Client Utility, but the "enable radio" button was disabled for clicking, so I tried the integrated Windows solution and that didn't work.

Then I reinstalled Windows and all the drivers and Atheros AR5006EG is recognized, but I can't get it to scan wifi networks.

FN+F2 doesn't do anything, the wireless button next to the Power button also doesn't do anything, and the button light is off. It is suspicios to me that the Zzz light (for sleep mode) is always on, even when the computer is running fully.

What do I do?

Check the UTP cable or the lan cable.
Check the RJ45.
Check for operating system firewall.
Check for antivirus firewall.

If you are connecting two computers you need a cross wired LAN.
Set each computer for IP address.

For more information follow this link.
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u will need RJ45 CABLE (normal ethernet cable, labelled cat5e)
plug one end into laptop network connection other into laptop

login address will be (netgear) details will be under router
http://192.168.1.1pi

or something like that.

login id: admin
password: password

if u cant login then, press reset button back of wireless router, will need to do that with pen or pin?
once logged into the router, use the setup wizard and the the rest is self explanatory.

once setup is dne, with SSID and password, then plug the cable from laptop, in back of the internet modem coming into ur house from ur supplier....and ur ready to surf the web.
find your new wireless network using the laptop and insert the password....

Please note that your cable will support below givne O/S check at your end.

One destination PC running Windows 7 (32- or 64-bit) and available USB port

One source PC running Windows® XP (32- or 64-bit) or Windows Vista® (32- or 64-bit) and available USB port

For Example two Pcs 1 is Xp and other pcs is Windows 7, then try to connect between both .

Another one more option is there for transfering the data between two systems either laptop or Desktop by a cross cable (LAN CABLE), buy a cross cable from shop and insert into RJ45 Socket (i.e lan socket) the try to transfer the datas.
If this answer is helpful, please rate....

If the modem connect to a coaxial cable its cable, if connect to a RJ11 aka Telephone cable is DSL. Most of the modems connect the computers via RJ45 aka Cat5 or network cable. For this type of connection you do not need drivers.

If the computer not connect to internet, check for the NIC card driver in COntrol Panel. If the drivers are good, then open the command prompt (go to START | Run.. | Type cmd and press ENTER) and type ping 127.0.0.1, if you not have a success the network card is bad. If successfull...

Type ipconfig, if you have return IP of 169.254.x.x then your computer is not getting an IP. reset the router and check again.

When type ipconfig you have to display one of these IP address . 1) 192.168.x.x 2) 172.16.x.x 3)10.0.x.x. If you cant connect check for third party software installed.

check if your laptop has its necessary drivers for the network adapter. if none, you need to install a network adapter driver.

You can use hub for that matter. Use RJ-45 Cables (Crossover) for connecting just two computers and connect each unit with the cable inserted from your cpu to the hub. To create an RJ45 local area network in Windows, you will need: Several computers running Windows (computers running two different versions of Windows can be part of the same network);
Ethernet cards on a PCI or ISA port (with an RJ45 plug) or built into the motherboard. When applicable, make sure the diodes on the back of the network card light up when the computer is on and that a cable is plugged in.

If it is a RJ-45 connector yes you can use it, The landline uses a RJ11. If the cale fits in the connector then it is a RJ45 connector and you can use this connection. If it works with your internet connection take the netwotk card you bought back. Hope this helps.