Quick steps (in this order)
Open a single Incognito / Private window (not multiple windows)
If agent replies appear, an extension (often an ad-blocker / privacy extension) is blocking content — turn extensions off one-by-one to find the culprit.
Try a different browser (Chrome ↔ Firefox ↔ Edge ↔ Safari).
This rules out browser-specific protections or settings.
Clear cache & cookies, then hard-refresh the page (Ctrl/Cmd+Shift+R or Ctrl+F5).
Helpful for stale or corrupted local files.
Disable browser extensions (or disable them all, then re-enable one-by-one).
Focus on ad-blockers, privacy tools, or security extensions.
Turn off VPN / corporate proxy / security software temporarily (if applicable).
Company VPNs or proxies sometimes block or modify content.
Try a different network — e.g., connect via your phone’s mobile hotspot.
If that fixes it, the company network or home ISP is likely blocking/altering traffic.
Try another device (phone, tablet, or another computer).
Confirms whether issue is device-specific.