After arriving at Halifax, "Magog" worked up in St. Margaret's Bay and Bermuda before returning to Montreal for repairs, completing those at Halifax in August 1944. She was assigned to escort group EG 16, which was used to patrol and escort convoys along the eastern Canadian coast. She escorted Convoy ON 256 (Liverpool-New York City), joining the convoy from 8–9 October off eastern Canada. Several days later she escorted Convoy ONS 33 (Liverpool-Halifax), joining the convoy from 13–14 October in the same waters south of Newfoundland.