Slaz wrote:
> Lem wrote:
>> Slaz wrote:
>>> Lem wrote:
>>>> Slaz wrote:
>>>>> Using a HP laptop with Windows XP SP3. I have a wireless modem. The
>>>>> laptop using it's own built in wireless adapter connects fine.
>>>>> I have a USB wireless adapter that I us on the laptop when I'm away
>>>>> from home. ( mostly in summer when I'm RVing as I can attach an
>>>>> external antenna to it ). Just these past few days I've built a bigger
>>>>> and better antenna. When I tried to us the adapter; with it's original
>>>>> antenna ( not the new one ); it would connect to my wireless modem and
>>>>> shows an excellent signal and link quality; however; I can not connect
>>>>> to the internet. I tried the same wireless adapter on my desktop and
>>>>> it does work. So it does work; just not on my Laptop. Data encryption
>>>>> is via WEP and I did put in the right password as I'm showing a . I
>>>>> did turn of my Virus program and my firewall with negative results. Me
>>>>> thinks I've changed something somewhere on my laptop and it is
>>>>> preventing this wireless adapter from communicating with the internet.
>>>>>
>>>>> Any suggestions?
>>>>
>>>> *What* IP address and Subnet Mask do you get?
>>>>
>>>> Most likely, you mis-entered the WEP key (you really should be using
>>>> WPA2 or WPA).
>>>>
>>> Getting a IP address of 192.168.254.6 and a subnet of 255.255.255.0
>>> I have the right password as I went in and changed it to a "wrong"
>>> password and I wouldn't get a Ip address or subnet. When I changed it
>>> back to the right password; the Ip and subnet addresses came up.
>>
>> I apologize. You are authenticating to the wireless router.
>>
>> Perhaps when you originally configured your router you enabled
>> additional security features. For example, some routers can be set to
>> deny Internet access to specific computers, either by assigned IP
>> address or MAC address. Also, depending on how you turned off your
>> firewall, you may not have disabled it for the USB adapter (each network
>> connection is firewalled separately; check in "Network Connections").
> You forget that I can connect with the laptops own internal adapter. It
> is only when I try and us the USB adapter; that I can not connect.
> Me thinks I screwed something up.
I didn't forget at all. Your USB adapter has a different MAC address
than your built-in adapter. Thus, if you had configured your router to
only permit Internet access to the MAC addresses corresponding to your
built-in adapter, you would see exactly the symptoms your report.
The same holds true for your firewall (see also Jack's comment). As I
wrote, the firewall may well be configured separately for each network
adapter (that's how the built-in Windows XP firewall works). So again,
if you "disabled" the firewall only for the built-in adapter but not for
the USB adapter, you'd get exactly the symptoms you report.
> Reason being this past Xmas season we
> went to another city and stayed with my in laws who do not have
> internet. I was able to connect to the neighbors via the wireless
> adapter in question; but not right away and I changed settings back and
> forth until I eventually received a connection. The stupid think was
> working than; why it won't work now is beyond me. ( The wireless adapter
> works on my wife's laptop and my desktop; just not my laptop!)
Here's another experiment you can try: take your laptop to a public wifi
hotspot (e.g., Starbuck's). First try to connect with the built in
adapter. Assuming that works, *disable* the built-in adapter using
Device Manager and connect the USB adapter, and see if that works.
--
Lem
Apollo 11 - 40 years ago:
http://www.nasa.gov/mission_pages/ap...0th/index.html