Internet Connection drop seconds after Connecting to secure line

This started happening today.

Provider: Spectrum

I run secure line 24/7 on my main computer. This morning when I booted up I saw that the Ethernet was showing connected. I hopped on to youtube.com using fire fox and only 1 row of videos loaded. the rest were grey boxes. Refreshed the browser and I got the message that it could not find the site. I then noticed that I lost Ethernet connection. I tried going to other websites and saw the could not locate message

Rebooted the computer and the same thing happened. I turned off Secure Line and the internet worked normally.

After an hour of surfing I turned on my Secure Line.

The internet worked for 5 seconds, (able to switch to different webpage) but then network connection dropped…

What is going on???

→ https://support.avast.com/en-ww/article/222/ (Changing DNS settings)

Did not work

After following the instructions and flushing DNS. I am able to surf with Secure Line active for a few seconds, then I lose network connection.

Is is possible Spectrum has started to block Secure Line?

Edit: I used the Cisco Open DNS

My roommates are using Express VPN with no issues.

Contact support: https://support.avast.com/contact