Archer C9 WiFi router from Amazon.
The main reason I say that is because all other things being equal, I doubled my WiFi connection speed and fixed a long standing problem where I could not reliably stream anything, by doing nothing other than replacing my previous router with the Archer C9. It has made a huge difference for me.
The main reason I decided to upgrade to the Archer C9 was because I was having to reboot my previous router regularly, several times a week, just to be able to use the internet at all. Forget about streaming anything. Even though my Comcast connection is a fast 75Mbps download speed, I could never stream anything even being only 10 feet from my old router. For comparison, my old router was the high powered Buffalo WZR-HP-G300NH.
With the new router, I installed and configured it in less than 5 minutes and when testing my connection speed over WiFi on my laptop, iPhone 6 Plus devices and on the iPad, the speed went from 43Mbps to 90Mbps instantly. That speed was more than double and quite a bit higher than the promised 75Mbps speed that Comcast advertises, impressive to say the least.
I was also immediately able to stream movies and video from my phone or laptop to my ChromeCast player flawlessly. And on the plus side, I've owned the router for 3 months now and have only rebooted it twice and I don't even think that was necessary. I was having problems playing online games with Xbox Live and in both cases, it was actually a problem on their side.
As far as the technical details go, the Archer C9 is made by TPLink and it is a 802.11AC Dual Band WiFi high powered router, that supports the latest in WiFi technology and provides both 2.4GHz (600Mbps) and 5GHz (1300Mbps) bands simultaneously.
That means that your newer devices like the iPhone 6+ and newer iPads can take full advantage of the increased speed and bandwidth that a 5GHz AC connection provides, while still fully supporting your older devices as well. That also means that you'll be able to stream the highest quality HD video without any lag.
Additionally, the router comes with USB 2.0/USB 3.0 ports and 4 - 1GB network ports, so that you can easily share a printer locally and files & media with networked devices. It also looks really cool too!
These days we just expect WiFi to be available and to work as it should and the Archer C9 does that right out of the box, without any tweaking.
I heard about the Archer C9 from several folks I work with, 3 of them had recently purchased the router themselves and they all have had good experiences with the new device.
There are currently 2,800+ reviews on Amazon with an average rating of 4.5+ stars. My review would definitely be 5 stars. It is one of those purchases that exceeded my expectations greatly and that I wish I had made much sooner. Given how well this one just works, I can't believe that I dealt with the connection issues, constant reboots and just overall poor connection issues for so long with the old router.
If you are experiencing any issues with your existing WiFi router, or just looking to upgrade and take advantage of the latest technology, I can wholeheartedly endorse the Archer C9. I haven't experienced a single problem with the device in the 3 months I've had it and I couldn't be happier with the results.