A device (103; 202; 300) for automated tuning of configuration parameters (221, 222; 341, 342) of an auto-channel selection function (102; 201), abbreviated ACS function, in a wireless access point, said device (103; 202; 300) comprising: - an ACS performance observer adapted to collect performance parameter values indicative for past performance of said ACS function (102; 201); - a wireless network inspector adapted to collect a user activity pattern for said wireless access point and an interference pattern for one or more neighbouring wireless access point (121, 122); - a behaviour tracker adapted to monitor recent user activity on said wireless access point and recent interference of said one or more neighbouring wireless access point (121, 122); - an anomaly detector adapted to compare said recent user activity with said user activity pattern, to compare said recent interference with said interference pattern and to detect therefrom an anomaly in user activity or interference leading to contention; - an ACS behaviour assessor adapted to compare said performance parameter values with said user activity patterns and said interference patterns in order to detect improper setting of configuration parameters of said ACS function (102; 201) comprising insensitivity (221; 342) and/or frequency (222; 341) of said ACS function (102; 201) within a user activity period, said user activity period being a time window wherein said user activity patterns show a user activity above a certain activity threshold; and - a configuration parameter adjuster (202; 304) adapted to modify said insensitivity (221; 342) and/or said frequency (222; 341) of said ACS function (102; 201) upon detection of said anomaly or detection of said improper setting of configuration parameters of said ACS function (102; 201), wherein said insensitivity (221; 342) of said ACS function (102; 201) corresponds to a configuration parameter specifying a time window during which interference above said interference deviation threshold be tolerated before said ACS function (102; 201) is triggering channel reselection, and wherein said frequency (222; 341) of said ACS function (102; 201) corresponds to a configuration parameter specifying a lockout time window, being a minimum time interval in between which said ACS function (102; 201) is triggering channel reselections. - an ACS performance observer adapted to collect performance parameter values indicative for past performance of said ACS function (102; 201); - a wireless network inspector adapted to collect a user activity pattern for said wireless access point and an interference pattern for one or more neighbouring wireless access point (121, 122); - a behaviour tracker adapted to monitor recent user activity on said wireless access point and recent interference of said one or more neighbouring wireless access point (121, 122); - an anomaly detector adapted to compare said recent user activity with said user activity pattern, to compare said recent interference with said interference pattern and to detect therefrom an anomaly in user activity or interference leading to contention; - an ACS behaviour assessor adapted to compare said performance parameter values with said user activity patterns and said interference patterns in order to detect improper setting of configuration parameters of said ACS function (102; 201) comprising insensitivity (221; 342) and/or frequency (222; 341) of said ACS function (102; 201) within a user activity period, said user activity period being a time window wherein said user activity patterns show a user activity above a certain activity threshold; and - a configuration parameter adjuster (202; 304) adapted to modify said insensitivity (221; 342) and/or said frequency (222; 341) of said ACS function (102; 201) upon detection of said anomaly or detection of said improper setting of configuration parameters of said ACS function (102; 201), wherein said insensitivity (221; 342) of said ACS function (102; 201) corresponds to a configuration parameter specifying a time window during which interference above said interference deviation threshold be tolerated before said ACS function (102; 201) is triggering channel reselection, and wherein said frequency (222; 341) of said ACS function (102; 201) corresponds to a configuration parameter specifying a lockout time window, being a minimum time interval in between which said ACS function (102; 201) is triggering channel reselections.