How is it legal to have a monopoly on internet services in an area?

This is hands down the worst company I have ever had this displeasure of dealing with.  I am an IT professional with 15+ years of experience and have been complaining about the quality and stability of my internet connection for a year and a half (since I moved).  It is beyond clear that there are issues with the local infrastructure because my internet will completely stop working for 1-5 hours on any given day, then suddenly start working again for another two weeks.  This is not a modem problem... this is not a router problem...  This is an ISP issue and I am being treated like I do not matter.  

I have NO other options for service providers in my area.  It is remarkable that the government allows this collusion to go on.