"Dyson" remained in the Solomons until March 1944. She continued to harass the coast of Bougainville and patrol the shipping lanes to Rabaul to prevent Japanese reinforcements from reaching the northern Solomons. In February she joined the support force for the invasion of Green Island, then made two sweeps off New Ireland hunting Japanese shipping and bombarding Kavieng. On the second of these, on 22 February the destroyers sank two cargo vessels, a destroyer-minelayer, a patrol craft and two barges, and "Dyson" captured 31 of the 73 prisoners of war taken from "Claudia Maru". On 23 February she pounded shore targets on Duke of York Island, and in March joined TF 31 to cover the invasion of Emirau.