I replaced the Dell WLAN card with this card so I could get on 5ghz networks. It works great, except it randomly disconnects and I have to toggle to another network and back and it's back to normal. I Googled this issue and found other related problems dating back to 2010, but none helped me fix this.
In this particular case, we recommend that you contact your computer manufacturer to check if they have any driver that might resolve this issue. It is important that you know that Intel does support integrations which is the replacement of the original card for another. Please keep in mind that wireless hardware installation and use is subject to regulatory approval and the new adapter may not support your local regulations. Only your system manufacturer is entitled to provide the list of validated and certified adapters that are compatible with your system. Please check with them as they are your first best choice to have this issue resolved considering that any card originally installed by the OEM (Original Equipment Manufacturer) is customized and that implies in significant changes such as voltage, features that are added or removed... etc. Furthermore, Intel(R) Wireless Cards such as the one you have are meant to be professionally installed by the OEM technicians on certified systems only. Please check the links below for further information.
On our best effort to help you we would like for you to take a look at the links below as they contain information that might help you improve your connection.
http://www.intel.com/support/wireless/wlan/sb/CS-034658.htm Intel® Wi-Fi Products — Quick Checks That Might Improve or Fix Connection Issues
http://www.intel.com/support/wireless/sb/CS-030709.htm?wapkw=wifi+recommended+settings Wireless Networking — What are the Recommended Settings for 802.11n Connectivity?
We do hope this piece of information helps you.
I've been working with Dell Support team level 2. They installed appropriate driver for my devise. The problem still persists. The wireless connection will drop and I have to toggle between wireless connections to get it back. It happened about once or twice an hour. Now it can happen 2-3 times in a 5-10 min period.
I replaced the wireless card with my old 2.4GHZ card and it works fine. I just can't connect to 5GHZ networks like I want. Dell called me today(I changed back to intel Wireless card) and changed a bunch settings, updated bios etc and it worked for a while and then started dropping.
I logged in to my apple rounter and set up 5GHZ network hoping it would hold using that network...we'll see.