For the remainder of 1942 and most of 1943, "Whitshed" undertook convoy escort duties and patrolled the North Sea and English Channel. In 1942, her ‘A’ gun was replaced with a twin 6-pounder army gun for engaging E-Boats. In November 1943 she was in action with E-Boats while escorting convoy CW221 off Hastings with two motor gun boats and four motor launches of the Coastal Forces. On 18 April 1944 she was in action again with E-Boats on a mine laying operation in the English Channel.