Settings | Inbound Traffic Blocked, Check Firewall

# Test TCP port nc -zv <target-ip> <port> telnet <target-ip> <port> Test with curl (HTTP) curl -v http://<target-ip>:<port>

Temporarily disable the firewall to confirm the issue (do not do this in production). inbound traffic blocked, check firewall settings

The firewall is blocking the incoming (inbound) traffic. # Test TCP port nc -zv &lt;target-ip&gt; &lt;port&gt;

Chain INPUT (policy DROP)