40301 — banned

This user is banned from the room. Terminal; do not retry the same identity.

At a glance — HTTP 403 · close 1008 banned · terminal · SDK FluxyAuthError with refusalCode: "banned".

What to do

• Stop reconnect attempts for this identity and surface a clear message instead.
• Reconnect only after an unban (/admin/unban) or with a different user.
• describeConnectionError() marks it terminal (isTerminal: true), so generic retry logic skips it automatically.

Related

• 40300 not_member
• 40302 forbidden