Tech coming tomorrow, need HELP!

[FRESKO]

Hi, so tomorrow im having a technician come to fix my internet connection. Im currently with Comcast xfinity and my package is Extreme 150 so I should be getting around 150 download and 20 upload. 

My connection for the past week has been dropping to the point where it cuts out and I have to reset everything. I dont believe the netduma has anything to do with the problem because I never mess with settings and my connection was fine before this week. Ive been living at this apartment for almost 2 years now and have had this problem before multiply times. The technician comes out and fixes it and everything is good for a couple months and then it starts to happen again where my speeds are cut in half to 30 download and 5 upload and then the connection just drops completely. 

What can I tell the tech tmo to help him pin point the problem? 

[PharmDawgg]

Just curious what device do you have between the R1 and the wall. 

     Is it Comcast's or your modem?

     Is it a modem/router combo or just a modem?

     What is the make/model of the device?

[FRESKO]

This is my setup  WALL - Cable Modem Router(Nighthawk AC1900) - Netduma R1

Theres no splitters, just one coaxial cord that leads from outside into the Cable Modem/Router

Just curious what device do you have between the R1 and the wall. 

     Is it Comcast's or your modem?

     Is it a modem/router combo or just a modem?

     What is the make/model of the device?

[Zennon]

Take out your Netduma while he is there so he can not just blame your set up.

 

Run Ping Plotter directly from your comcast set up when the line drops it will show on the plot red 100% packet loss and it will be evidence to show him.

 

Ping Plotter Download Free Trial

[Netduma Fraser]

As above, most important thing is take the Netduma out of the equation. If they see that anything you say they'll just pass the blame without even knowing if it's the cause.