Intermittent ERR_CONNECTION_RESET to Google Cloud-hosted service (kommodo.ai) - ISP routing issue?

I’m experiencing intermittent connectivity issues to a Google Cloud-hosted service https://kommodo.ai for the past several days. The site becomes completely inaccessible with ERR_CONNECTION_RESET errors, with no apparent pattern - it can be down for several minutes, then suddenly work again, then down for hours, then back again.

Symptoms:

  • Error: “This site can’t be reached” - ERR_CONNECTION_RESET

  • Intermittent accessibility (no consistent time pattern)

  • Issue is ISP-specific (see troubleshooting below)

Troubleshooting completed:

  • Changed DNS servers (1.1.1.1, 8.8.8.8) - No effect
  • Tested with different ISP (mobile hotspot) - Works perfectly
  • Contacted kommodo.ai support - They confirmed they use Google Cloud and suggested “the issue is on Google’s network side”
  • ISP changed my public IP address, temporary because the IP is in the Agreement and can be changed only if a new one is available and for additional fee - Issue Fixed

My Analysis: This appears to be a routing/peering issue between my ISP’s network and Google Cloud infrastructure, likely affecting specific IP ranges or BGP routes.

Questions:

  1. Are there any known routing issues between certain ISPs and Google Cloud regions currently?

  2. What diagnostic information should I provide to kommodo.ai to help them escalate properly with Google Cloud support?

  3. Should I run traceroute/MTR during outages and provide those results somewhere?

  4. Is this something Google Cloud can investigate if provided with my ISP’s ASN and affected IP ranges?

Additional Information:

  • Location: Chisinau, Moldova

  • ISP: Starnet

  • Issue duration: Several days (started around 6th of October)

  • Workaround: VPN or mobile data

Any guidance on how to proceed or what additional diagnostics to collect would be greatly appreciated.