Failed to connect URL for shotgrid

Hello Friends,
We are facing some slowness issue and while checking on the developer tool its says that below URL is failed to load and due to that users are facing slowness.

https://js-agent.newrelic.com/286.d.701d770f-1.234.0.min.js

Please suggest if anyone facing same issue or any solution for this.

Are you using an ad blocker perhaps?