Connectivity issues/ Live stream freezing

Hi there.

 

I am Zooming. I am live-streaming. I am having issues with freezing.

Additionally, my internet will just stop on my computer.

 

Here's what I think:

I have 175 mgbs- I think this is too slow.

I have a 8 year old laptop that might be shutting down

I have a very old Comcast router.

 

Can I improve my speed to what? 300 or 600 ? If I do this, I will need a newer router. My concern that the time from ordering upgrade and router arriving does this mean I have no internet? Is this true- I am working from home, so...

 

Can you help me, O wise ones:)