The users ofAsus Router often witness difficulties when they try to update Asus Router Firmware RT-AC68U. However, if you want to automatically update firmware,you are supposed to enable the feature of Automatic software/firmware update.
Now, it is up to any user who chooses if they would want to enable this feature
or not. One can simply apply these steps to fix all your problems. Applying the
steps will be helpful.

Remove any cables connecting to the PC. Then plug in the modem power adapter and check the power light to ensure the modem is on. For Netgear Wifi AC1200 R6100 Router Setup, you need to plug one end of an ethernet cable to the modem and the other one into the internet port on the router. Connect the router to the PC. Plug in the router and ensure it is on. 

Resetting your Airport base stationrestores it to a state that allows you to regain control of it when you lost
the base station password or the base station is not responding as expected.
For [b]apple airport extreme factory reset,[/b]locate the reset button and then press it with a pen then release it aftera few seconds. This will factory reset your router. 

Known for exhibiting excellent routing capabilities, the D Link WiFiRouter is significantly gaining popularity. You can use the default router login credentials to access the router’s management console and make the required
changes to the settings.

Wonderful post, Thank you! This articlevery useful for us.
Reset Netgear router