If you experience one/both of the following problems
- Limited data gets consumed within a short period of time (without a client actually using it) and/or
- Traffic graphs of users go up to a speed which is not even set for the service,
then disable the Only router monitoring option in the router, which is used to manage clients and from which information about data transferred are retrieved. (Click here for more information)
Otherwise, traffic counters are not reset. If a counter reset does not take place on a particular MikroTik router, the system obtains data that seem to indicate that the amount of traffic passing through the router has been on the increase and assumes that the speed of a given client's connection has increased.