VPN and Wifi

Hi! Ive been having issues with my home wifi for the last 6 months since my IT updated our security and now requires me to be on a VPN. I’ll have 3-10+ connection drops throughout the day that all last about a minute or more, which signifigantly impacts my ability to do my job. All of the other devices on the wifi work without issue. Ive done extensive testing with my IT, and they've determined that the issue is the wifi. Looking at other threads on the community, it seems like this has been solved with getting a new router, but these threads are two years old. Are there any new solutions? I am currently exclusively working iff of my phone hotspot, but sometimes the cell service in my area is not great, so I want to explore my options.  Currently on a Xfinity Gateway model XB7 with a 500 mbps plan.