What's happening?

curl -k -u "api_key:password" https://truenas-ip/api/v2.0/reporting/get_data?name=interface_traffic&interface=eth0

Because free RDP servers with public IPv4 allocation are prime targets for automated malicious scripts and brute-force intrusion, you must apply immediate security modifications right after logging in. 1. Enforce IP Access Restricting Rules

Solution: Verify that the IXRemote gateway service is running. Check if a local firewall or antivirus program is blocking the outbound connection port utilized by your specific gateway.