Hey Tdpz,

Thanks for reaching out!

Based on the screenshot in your post, it looks like this issue is originating at the second hop (your ISP) as you have already suspected. Considering this I suggest sharing this, and any other data you have collected representing this issue, with your ISP to work with them in fixing this issue.

If you haven't already I suggest checking out the article we have on building a case with your ISP:

https://www.pingplotter.com/fix-your-network/build-a-case.html

If this leaves you with any other questions let us know!

Best of luck,
-TJ