How to solve the problem with the D-LINK Dir-615 router?

Question

Computer networks

I recently decided to install Windows 8.1 on my PC.
After installation, it was necessary to set up the Internet, I set everything up, according to my mind. Then I decided to connect the D-LINK Dir-615 router, again everything went well. After 2-3 weeks of using Windows 8.1, WI-FI began to turn off, and it turned off literally for 10-15 minutes, then again distributed WI-FI. Well, I decided to climb the Internet, and came across the fact that, supposedly, I need to change the firmware of the router to a newer one. I downloaded from the official site installed. And in the end, a very strange thing happened - the power indicator is on, and all the other indicators "died"
Help, please, I hesitated

Answer 1

try this
2. Set your IPv4 network adapter to the following in your windows network configuration to: IP Address: 192.168.0.2, Subnet Mask: 255.255.255.0, Gateway: 192.168.0.1
3. Physically connect the router ethernet port #1 to your computer ethernet port (NO WIRELESS!)
4. Perform the 30/30/30 procedure:
With power on, hold the reset button down for 30 seconds.
Without releasing the reset button, unplug the router. Continue holding the reset button for 30 more seconds.
Without releasing the reset button, plug the power back in and continue to hold the reset button for 30 more seconds.
Release the reset button. The power light should be flashing on and off orange.
5. In Internet Explorer or Firefox enter 192.168.0.1