I suppose you could try a repair install of Windows too, but I'm not sure that would fix it. Have you by any chance uninstalled the driver. When I have had similar issues with other Dell laptopsa I have resolved it by going to device manager and right clicking the wireless adapter and choosing uninstall.
When it compltes the uninstall right click on any node and choose scan for new hardware, it should re-install the driver. Hopefully it will display all the wireless networks available. My guess is that the Broadcom utility for your old wireless card has full control over WiFi on your Windows install and is blocking the Intel wireless card from being able to do anything.
These utilities are very useful, but they tend to "take over" WiFi duties in Windows, in addition to having potential issues with multiple user accounts. Personal preference if you even want the Intel utility installed. I even went as far as to disable the switch in the BIOS. Windows 7 is nice in the fact that it doesn't allow 3rd party wireless network management software that I know of. That died finally with XP. At this point I suppose I will un-encrypt my drive and try to repair the windows installation.
I'll report back with my results. I had a similar situation when replacing the wireless card in a laptop. It turned out one of the antenna cables wasn't on as tight as it should be. So I re-seated the cables and it started detecting them again. Of course I also had a situation where it was doing that and it did take a restore! I gotta agree with Matthew. If the OS sees it, installs it, and shows up in device manager with no errors, you should be good to go.
The antenna seems the most likely culprit. Either that, or any type of manual switches that shut it off or on. You said you checked that already, so back to the antenna. Kindly help me with this. Didn't find what you were looking for? Ask the community. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
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Message 1 of 8. I then have to do this a second time and that one will work. It also turns itself off when any device changes are made to the system, such as plugging in or removing a USB flash drive.
I sometimes see it turn itself off when my screensaver has been running for a while, but it has to have been for quite a while, say at least 20 minutes. I have completely disabled it being powered off by Windows, so it shouldn't ever be turning this off unless I tell it to. I have verified I am on the latest version of their drivers.
I am open to any suggestions. Right now it seems my only option is to backout the last set of patches from Microsoft, because I don't know just which one causes the problem, and ignore all other patches that are made available. That is not a good solution, because it means I will be ignoring possible security and bug fixes that I actually do need.
I wanted to thank you all for the active discussion in this thread, and I would like to jump in and see if I can help address the multiple issues that seem to be covered in here. Please do this in that order, allowing 60 seconds in between each device to enable the device to be fully booted and able to accept connections.
If you are trying to use WPA or WPA2, please ensure that both your network adapter and wireless router support this protocol. If you are only able to connect using WEP, then your networking hardware may need a firmware upgrade. If you are having a problem with your wireless connection after resuming from hibernate or sleep, or are having intermittent connectivity issues, try to adjust your Power Management profile to change your Wireless Adapter Settings to Maximum Performance. You should do this with all of your power profiles.
Call the support line for your router manufacturer. It is likely that neither Windows nor the router are having problems, it is simply an issue of getting the configuration settings on both set up to work correctly together. The router manufacturer will be the best resource to know how to configure their device. I will continue to monitor this thread but will likely end up splitting this thread into individual smaller threads to address the various different issues that have been mentioned so far.
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