1. yes the computer is connected to router with an ethernet cable and other are connected wireless. 2. 4-5 devices are connected to the network. it recovers with in 20- 30sec automatically. i feel...

@Kevin_Z thanks for the suggestion, i have updated firmware but facing the same issue, even i am having a frequent net drop in my other devices but there is no net drop in my computer.

@Kevin_Z Even i am having the same issue, the signal disappears every 2-3 hours. No device can detect the wifi. The lights are showing green. There is no issue from ISP.