Router keeps dropping wifi

[Justin_L]

My router was working fine when i purchased it about 3 months ago.  Now all of a sudden, it keeps dropping the wifi and I have to unplug it and plug it back in.  I have to do this at least 4 times a day.  I already checked with my service provider and they ran a diagnostic check and my signal thru them is working properly.  Has anyone had any issues with this router, or any other router, just randomly dropping wifi?

[plemans]

You have the R6900?

What firmware are you on? 

What actual modem/gateway are you on? 

When did the issue start? 

Does it impact all devices? only wireless devices? Wired devices are fine?

Do you get a notice saying "connected, no internet" or what does it actually say/do?

Details of the problem help. 

Also, fyi, ISP's are great at saying "its not our service" and "we checked the line". Not saying its an issue but its their default responses.