Docs › Anti-sharing
Anti-Sharing
Preventing Voucher & Credential Sharing
Anti-sharing locks each voucher or subscriber account to a single device at a time. When enabled on a router, the hotspot will refuse a second login attempt if the same credentials are already in use — even if someone shares their code or password.
1
Enable on a router
Open a router's detail page → Setup tab → click the Anti-Sharing toggle. The change is applied to the router within seconds — no need to re-provision.
2
What it does on the router
Two things happen automatically: (a) The hotspot user profile's
shared-users is set to 1, so RouterOS itself blocks any second device trying to use the same login. (b) TTL normalisation firewall rules are added to detect and discourage clients from tethering their phone's connection to additional devices.3
After a router reboot
If a router restarts or reconnects, the anti-sharing settings are automatically re-applied before any client sessions are restored — no manual action needed.
4
Disabling
Toggle it off on the Setup tab. The
shared-users limit is immediately lifted back to unlimited and the TTL mangle rules are removed from the router.Multi-device plans: If any plan on the router allows more than one device (e.g. a family plan), do not enable anti-sharing on that router — it will prevent those clients from connecting their second device.