Solution is: replace the Router from vendor with another model. This 3600 model is defective and this is a hardware issue. Won't be solve with updated firmware or any setting change.

Yes ... this is the same firmware that I updated. Not helped. Vendor even replaced with a new one but problem persists. Any solution?

I have 3600 router also and having same problem... wifi data drops ... does anybody has the same router? If, then how can I solve it. (I've updated to latest firmware but problem persists)

I still have warranty. I bought it 3 days ago. Vendor replaced it with a New router. It ran for 8 hours but didn't hang. Let's see when it hangs again.. will let you know.

I have same issue with TP-Link WDR3600. I am searching for solution. I ran in Single band mode but problem is same.

Model : TL-WDR3600 Hardware Version : V1 Firmware Version : 150518 ISP : Metaphor I bought TL-WDR3600 Dual Band Router 3 days ago and it's already giving me pain. It's Wifi stops providing internet...