1. **Observed:**
   - Stable node address is 128.173.10.1.
   - Connectivity to Uni (10.0.6.2) is successful.
   - Traceroute to acm.org shows a successful path to 198.82.0.1.
   - DNS resolution for acm.org returns 198.82.0.1.
   - HTTP request to acm.org fails with a "Connection refused" error.

2. **Decided:**
   - Escalate the issue to Uni for further investigation.
   - Inform the user that the problem is with the acm.org server, not the network.

3. **Why:**
   - To ensure all network components were functioning correctly before concluding the issue was with the server.
   - To provide the user with a clear and actionable response based on the findings.