Internet Is Not Stable?

So here's my problem, my internet speed is fine , but the connection just drops at random times ,sometimes every hour , same time, my internet goes down and i have to turn my router back off and on again to make it work. Sometimes it doesn;t even work , i get the yellow sign on my wifi icon, on my toolbar , and i have to leave it on for like a hour before it works again.

I know there's nothing wrong with my wifi router and the modem, because its been working fine ,I think its something to do with the connection lines from my house to the isp. And also when i run a troubleshoot on my wifi , i always get the "the connection between your access point and the internet is broken" So i have to restart my modem and my wifi router. I have to do this about 20 times everyday at least. Sometimes it can work for an hour or even longer without any problems, so it can;t by my modem or my wifi.

Here is a picture of the Diagnostics Test i ran on my modem:I think the fail's are the ones that is causing my internet to behave like this.Im running windows 7. 64 bit. Im using a wifi connection. My setup is the modem being connected to the wifi router , which i then connect from. Also i've called my isp company, they said they would come tomorrow , if they do come , what should i tell the problem is? So they can fix it?