my company's vpn connection keeps dropping.

I called Xfinity twice (why only twice? because each time is a long waiting after talking to a robot). The rep ran some tests and told me that I have high speed. I paid for it I know. When I asked him to turn on monitoring to ensure the stableness /reliability as my company IT suggested as high speed but unstable, means [Edited: "Language"] to remote working at home. I was told, "Yes, You will receive a link on your phone. You have to respond in a day, if the issue was resolved or we need to dispatch a tech. We will give you a follow up call.". He was right, I got a link for survey for satisfaction of his services.... I neither got the stableness monitoring report nor having someone call me.

Today, I connected with my company IT again... he made the comment about Xfinity causing VPN connection dropping. [Edited: "Inflammatory"] 

After my company IT did the remote connect to check everything on my laptop from VPN setup to hardware, software updates and drivers update, he ran ISP test and said, "as you can see, 99% its related to your ISP dropping a few network packets long enough for cisco to disconnect you."

I searched the forum and found tons of comments about ISP packets dropping... but see no response from Xfinity to successfully resolve the issue... Considering I pay high monthly fee for so-called Giga.