What can break a working connection?
Maintenance notes identify what was checked and why it matters. Planned checks are not presented as completed updates.
Key creation and IP restrictions
Review the official API creation guide. Default security controls restrict non-reading access on system-generated HMAC keys without IP restrictions. Do not disable controls to troubleshoot.
Permissions and error codes
Check the official permission categories and the meanings of -2015, -1021, -1022 and HTTP 429. Read the tool documentation alongside the platform documentation.
The next review
Update when an official change or reproducible connection issue requires it. Otherwise check sources monthly without advancing article dates.