The Dell Inspiron 7537 laptop is a really nice bit of kit. It has a core i7 processor, 16GB RAM, a 1TB hard drive, a 15.6" 1080p touch screen, and a back-lit keyboard. There appears to be a wide-spread issue though. It comes with Windows 8! No, I'm kidding. Though it does actually come with it, that's not the problem (hint: Linux Mint is awesome on this thing!).
The actual issue is with the wi-fi, or rather, the lack of it. You almost have to be on top of your router to get a connection and even then the speed is very slow. It's incredibly frustrating when you've just shelled out £750 on the machine, and in my case, another £100 on top to replace the hard drive with an SSD only to find you need to be tethered to your desk and an Ethernet connection.
It turns out after much searching and many futile attempts to fix it that the problem is with the INTEL Wireless-AC 7260 network adapter itself, and not, as some had suggested, the metal lid of the laptop causing interference. For me, the issue turned out to be power management. It seems that the adapter is constantly being told to power down causing the connection to drop or in some cases, not even connect. The fix though, for Linux users, is easy. Simply turn off power management on the adapter itself:
sudo iwconfig wlan0 power off
Reboot and there you go. A working, stable, and fast wi-fi connection.
polyglot programmer - passionate, opinionated, cynic, realist