Recently moved now WiFi keeps dropping

I lived in an apartment for 12 months with zero WiFi issues. I recently moved and now I am experiencing the following issues: 

- Randomly dropping for about 15 minutes while trying to stream on TV

- Randomly disconnects to Blink Camera and Robot Vacuum requiring me to frequently re-setup devices to wifi

- Generally slower and randomly drops. 

This only started occurring once I moved. I have ran the Xfinity app diagnostics multiple times and it always says it’s running great in all metrics and tests. My WiFi even says it is running at 115% plan speed. 

What is the issue and how can I fix it?