Buffering issues with https://watchtv.cox.com/

Starting last week, I have constant buffering issues while watching https://watchtv.cox.com/ on my desktop computer that is hard wired into my modem. I have had this same set up for years with no issues. Again, starting last week, most channels I watch constantly buffers with the 3 dots and then the message "attempting to resume... we've run into a problem while streaming 'xyz" program". Please wait while we try again."  When it resumes, the program starts from the current time not where it started buffering. Sometimes the buffering is as much as every 30 seconds or every few minutes. Makes watching impossible. This buffering seems to occur frequently on Fox News yet  I can stream directly from their website live without any buffering issues. My speed tests are normal ranging from 115 - 120 mbps. No other internet issues only on https://watchtv.cox.com/. I've tried Microsoft Edge and Firefox with the identical issue. Again, this issue started last week. See attached image at imgur.com[View:https:/.../UN1GfXN

Thank you.