After being reduced to Reserve crew on 6 February 1923, "Thruster" was recommissioned in Portsmouth as part of the Portland Anti-Submarine Flotilla on 26 May 1926. While there, the ship took part in a number of trials of anti-submarine tactics as part of the development of ASDIC. The ship was considered as part of the planned Royal Navy deployment in defence of traffic between Port Said and Alexandria on 19 October 1935 after the start of the Second Italo-Ethiopian War but was scrapped on 16 March 1937 before the outbreak of hostilities between Italy and the British Empire.