My internet keeps going in and out and I can not get any help

[jedi5ive0]

I have been hung up on by your automated phone system multiple times.  I am disabled so it is difficult to  type quickly enough for your chat agents, thy just end the chat.  I used your website to increase my service to 600 but I am not getting the speed ( getting 290 ), I just have unstable internet.  It stay on for a while then turns off.  

[EG]

Start here;

https://forums.xfinity.com/t5/Your-Home-Network/Internet-Troubleshooting-Tips/m-p/3310447#M316652

[jedi5ive0]

I have been restarting the modem multiple times, excluding the multiple times the system did it so I could get help .  The help never occurs I just get hung up on.