It is January 28, 2015 and I am having the same problem. I have 2 routers and wifi will not stay connected. Moreover system tray will say I have Internet connection but I really don't. Can't even pair the Wifi. Installed all latest drivers and BIOS updates still same problem.
i got the wireless hardware replaced. Also i got the laptop back to factory settings. NEVER install any dell wireless updates. That is the culprit i think. Since i went back to factory settings it works fine for me.
Though now i get windows blue screen issues once a day or once in 2 days but i guess that is windows and a different problem.
disable U-APSD(only available in the 17.0 version of the driver). This seems to be working.
You can disable this setting by doing the following:
if this not work download new wifi Adaptor released by Intel for AC-7260 on 26th Jan 2015 following is the link
I was experience same issue in XPS 15 9530 for Wireless Intel AC 7260 where wifi sometimes disconnect and it work only after restart the laptop, Today I connect with dell representative Amol_Sapre Dell | Technical Support Associate, He told me please check your BIOS version and when i check through run command " msinfo32" It was version AC06, Then he suggedted me to download new BIOS version from Drivers and I downloaded and installed new version and wifi issue gone completely. now there is no issue of wifi disconnect here my snaps.
I have the BIOS version A07 release Jan 15, 2015 but when installed it still says Oct 2014. It helped a little but then started to deteriorate. I have also tried reinstalling it. I have unchecked the power saving option for the network card. I installed the Jan 2015 Intel updated network card driver. That helped for a couple of days although I could still not get a 5G connection that works. Then after 2 days the wifi gets dropped again. I have a Motorola Gateway/router 802.11ac and a Cisco 802.11ac plugged in to the Motorola. I have to keep turning off the one that has dropped me and connect with the other till I get a connection that is not limited as to wifi. Still no 5G .
Still no solutions? I have a new, fresh XPS15 9530 since few days and the problem is still there.
Very often the wifi crashes and I have to reboot. Very frustrating. It is a pity because the computer is beautiful from any other point of view.
Everything is updated, Bios A09, Windows 10, WiFi adapter Broadcom 1560.
Thank for some help.....
Please use dell internal adapter, I upgraded OS to windows 10 pro and BIOS A09 there is not a single issue of wifi crash, Please log an Service request with Dell for wifi issue I hope you will get solution soon..
Power options - Advanced power options (WIFI adapter). Make sure the wifi adapter is running at maximum performance when running on battery.
Thanks for the suggestion. The problem is reduced in frequency but it is still there.
I found a little workaround: a software called NetSetMan that at least avoid having to reboot.
NetSetMan is a freeware network settings manager which can easily switch between preconfigured profiles.