Latency / Packet Loss - Interfering with my job!

I have been having service issues for about 7 months now. Over the last couple months, it has really gotten a lot worse. I have issues with intermittent Internet connectivity drops / very slow Internet speed and the speed fluctuates a lot, which is also affecting the cable TV service.

 

I have had 7 or 8 techs out here over the last 2 weeks, but my issues are still unresolved. This is REALLY impacting my livelihood in a most negative manner, as I work from home using my Internet service.

 

It seems when I call in to report the issues now, the agent will go through the troubleshooting steps and tell me that they will schedule an appointment. Then, they come back to me and tell me that the system will not allow them to schedule the appointment. This is not right to just leave me with the issues unresolved, especially while I cannot work until these issues are resolved.

 

I have packet loss / latency, which is detected by the IT department where I work. They tell me that I fail the tests that I must pass in order to work. They have checked (and rechecked) everything on their end and HP has checked my computer (and rechecked); They both check out with NO issues. Since this is an intermittent issue, it is hard for the agent to SEE it, I suppose.

 

My next door neighbor tells me that they, too, are experiencing intermittent connectivity issues. So, it is not just me. I believe there is an issue in the lines or equipment away from my home, but I really need a tech to come out and investigate this issue and get to the bottom of it. I need this resolved, before I get fired, please. 

 

*The wireless gateway has been replaced 3 times in two months; All splitters have been replaced,  all Ethernet cables have been replaced, connectors inside my home have been replaced, they changed out my cable boxes for wireless cable boxes, they ran a new line to my house outside.  I have had my computer tested three times by HP.