Okay, this has been driving me up the wall for weeks now, and I've looked everywhere to try to find a fix for this to no avail. I could really use some assistance here.The issue is this:I'm running Windows Vista Ultimate 32-bit edition. I'm using a D-Link DIR-655 router with the latest firmware build. I have an XP desktop and laptop aside from this that both connect to my wireless network flawlessly. My Vista desktop has a D-Link DWA-552 card installed using the standard Atheros driver set. It is not using the drivers from D-Link directly. The Vista desktop also has all current win updates, including SP1.Now, for a while, this issue was liveable. However, that is no longer the case. It used to be that my wireless connection on the Vista desktop would only drop about once every three days or so. The desktop would auto connect, as it's supposed to, on boot up, but it would never auto reconnect after the drop... nor would it reconnect if I manually told the system to reconnect to my network. My system will ONLY reconnect upon reboot. It is not a signal issue as my system gets full bars over the N connection. I haven't tried to power cycle the router and/or modem because I don't feel like walking across my apartment when I can simply reboot my machine. This problem has increased in frequency to the point where it is now happening two times or more a day, and this is entirely unacceptable.I am not running any firewall whatsoever on the Vista machine. The antivirus program I'm running is currently NOD32.I am open to any suggestions that one might have for getting this issue resolved. I'd prefer to not have to wipe and reload this box, as I've dumped a lot of hours into this issue to the point where I want to see it fixed.Thank you for your assistance.-Sam

Right click the wireless network connection icon in the system tray and select diagnose and repair. See if this helps. I had a similar problem with my DLink router a really long time ago with my XP system. However, it turned out that the problem was with DLink. If you have another router, try it to see if it produces better results.

I am having the same problem with this card (DWA-552) and Vista. I have been hunting down a solution for about a month with no luck. Instead of rebooting you can disable then reenable the card and that should work, which is faster than a reboot. As you can tell I am still hunting for a solution to this, which is why I stumbled on to your post...

I haven't had to use the Repair function in Vista, but in XP, when you selecte Repair, it disables and then re-enables the wireless adapter for you. So, this approach will be one step faster

Thank you for the responses thus far. I'll have to try the "disable/enable" thing myself.I would, however, like to see things work normally. From what I've read on the web before, I don't believe this problem is hardware related. I'm 98% certain we're dealing with some kind of software issue. My router works fine. Neither of my xp machines get booted off, ever. I don't believe it's the wireless card either. My reasoning for that is the fact that I had a basic 802.11g Gigabyte card in my system before I upgraded. That would drop the connection as well. It's only slightly more frequent and at more inopportune times since I've put the new card in to take advantage of 802.11n's bandwidth.Still, all my reading points me to software. I'd just like to think that someone, somewhere, has made some kind of significant progress on this issue.Sigh... lol