Hello, Mr. Todd, thanks for your time and support. I have tried your suggestion/solution, read almost all topics with options in "wifi doesn't connect" and etc.. Nothing helped. But.., after an hour work and different "algorithms", I think I found solution for my problem: 1. Device manager; Network adapters [IMAGE] 2. In "Microsoft Virtual Wifi Miniport adapters (both)" Power manager unchecked box with "Allow the computer to turn off this device" 3. In "Intel(R) Dual band wireless" done opposite - in Power manager checked box with "Allow the computer to turn off this device" 4. It seams that this move helped to solve this issue. Now, after hibernating or sleep mode my wifi connects automatically.  Thank you
Hello, Just bought my new Dell Inspiron 15 (5558). There is an annoying issue with Wireless connection -  after sleep or hibernate mode it doesn't reconnect wireless automatically: 1. I have the latest drivers (downloaded from dell support with service tag number); 2. Already Unchecked the box "allow Windows to turn off this device to save power" (in adapter, power management); 3. Other computers, tablets and smart phones work perfect with the same router. So, I have tried almost everything (search dell community forum) - nothing helped.  It is so annoying. Please, any ideas or possible solutions? Regards, Tom
Dell Inspiron 15 (5558) Wireless connection issue after sleep or hibernate 
(Win7 pro)