New Airport Extreme (6th Gen) Dropping Connection from Time to Time.

Question

Problem:
6th Generation Airport Extreme drops connection intermittently at random times.
Set Up:
6th Generation Airport Extreme (main router - no hard drive/not a time capsule) located center of house on the main floor. 2 Range extenders each approximately 30+ feet away from main router. First range extender (Airport Express - newest generation) located on the third floor parallel to main. Second range extender (Airport Express - new generation) is located at the end of the kitchen (main floor).
Main Router is connected straight from a Motorolla Surfboard modem on a foyer table at the center of the house.
Range extenders connected to Main Router wirelessly and at wall outlett height.
Previous Setup:
Same setup as above but, with the 5th Generation Airport Extreme instead of the 6th Generation.
Firmware:
All current versions.
Devices:
1 SONY VAIO VGN-FW490J
HP Notebook G60
Several WEMO outlets
1 iPad Mini
1 iPad 2
1 iPhone 5
1 Motorolla RAZR MAXX
Macbook Pro
iMac (wired from main router on foyer table)
        Note: All of these routers/range extenders/modem/computers are plugged into surge protected outlets.
Notes:
With the new Airport Extreme my family and I have been experiencing intermettent connection drops. The amber light on the main router turns on and within a few minutes turns green and connection resumes again. This has been happening for a few days now ever since I purchased the new router. This has not happened before with the 5th generation router, which I donated to our church.
I have not exchanged the product yet. I will be initiating a Complete Power Recycle after some suggested solutions in a bit. I have contacted my Internet Service Provider (Comcast) for a line check and found no problems.
Has anyone found any solutions to resolve the intermittent connection drops? Is reverting to the previous firmware going to solve this?
I would like some insights before trying to do all this. Thank you all for your time.
P.s.
I've done a detailed post since posts like these is frequently asked questions on set-up, devices, connections, etc:

Answer 1

Update:
Before I went to exchange my 6th Gen Extreme, I ran through all possible solutions from complete power recycle to no devices connected. I even went out of my way to my cousin's house to test it out. The same problem still kept coming.
I was able to exchange my 6th Gen Airprt Extreme with another 6th Gen Extreme the other day. I set it up how the instructions told me and within an hour it did the exact same problem as the previous 6th Gen Extreme. I gave up and decided to get the ASUS RT-AC66R (ASUS RT-AC66U is the same, just the 'R' is Best Buy's model.)
The ASUS router is just as great as the 6th Gen Router. You can actually get it down to $180 by price matching to Amazon. The ASUS router has 3 antennas that you can adjust according to where the signal is used more. I pointed them more towards the backyard, upstairs, and the living room. The range is by far better than the Extreme because of this. I was able to drive down a good block (3-4 houses down) and still connected to my router. Also it has 2 USB ports which was fantastic for me so I can plug in my external hard drive and a non-wireless printer. It has many more features that I really liked that I didn't even know was possible. The router utility interface is a bit confusing at first but, it's pretty easy once you get the hang of it.
Some features that I liked with the ASUS was the ability to have multiple guest network with time limits. 3 for 2.4gHz and 3 for 5gHz. I think that Airport guest accounts are only allowed 2.4gHz but not a 5gHz. Though I only needed 1 for each but, I can see this working well for businesses.
Another feature is traffic manager. I am able to set specific bandwith for different types of use such as, high priority 80%-100% bandwith for gaming, medium priority badwith 70%-90% for HD media streaming/data transfer, and 50%-80% low bandwith for casual web surfing. It also has it's own "beamforming" so that data isn't free roamed.
Lastly it has AiCloud sync which is basically like having a hard drive into your router but, much like having a Dropbox at the same time.
More or less I think I'll stick with the ASUS router rather than going with the new Airport Extreme. I think that it's more on firmware issue than it is hardware. If you are not willing to switch to another brand and want to keep staying with Apple, I recommend going back to the 5th generation until a new firmware or rebuilt 6th gen extreme is out.
I have not found any problem with the ASUS router and no intermittent connectivity issues.
Now I am not trying to make you buy the ASUS router. I'm merely expressing how great the product is.
I do have 60 days from Best Buy return policy to try out the ASUS (and report of any malfuntions) and if within that time a new firmware is out for the Extreme. I highly doubt I'll go back to the extreme though.
Hope this helped!!