She was anchored in Humboldt Bay until 2 December when she got underway in the escort of a convoy bound for Seeadler Harbor at Manus. "Witter" and her charges entered the harbor the following day, and the destroyer escort remained there until mid-month, conducting tactical exercises in the vicinity until her departure. Between the 15th and the 23rd, she made a round-trip voyage from Manus to Ulithi and back. Following an availability and more exercises at Manus during the last week of 1944 and the first week of 1945, she repeated her voyage to Ulithi and back between 6 and 14 January 1945. Another such run late in the month was followed by an availability at Manus which included a period in drydock. During February, she made two voyages from Manus, one to Majuro between 5 and 20 February and the other to Humboldt Bay between the 21st and the 23rd.