Boston was stationed off the Eastern Seaboard of the United States, intercepting numerous French merchant ships trading with American ports.
For a time he blockaded the French frigate Sémillante, but by 1801 had sailed for the West Indies, operating in the Leeward Islands and then moving north to Halifax, Nova Scotia, where he remained until 1804, continuing in employment throughout the Peace of Amiens.
Ordered to the Eastern Seaboard of the United States, Bellona was cruising with HMS Belleisle off Cape Henry on 14 September 1806 when the French ship of the line Impétueux was spotted steering into the Chesapeake.
This squadron became embroiled in the controversy surrounding the removal of British deserters from American-flagged vessels that ended with the Chesapeake-Leopard Affair in July 1807 and Douglas exchanged angry letters with the Mayor of Norfolk.
Moving to the North Sea in 1810, Douglas captured the privateer L'Heros du Nord and in 1812 transferred to the 98-gun second rate HMS Prince of Wales in the Mediterranean, where he remained for the rest of the war.