Manager Darren Ryan has left Newtown after only 17 days in charge of the Latham Park side.
The former Shrewsbury, Chester and Barry Town player has quit to join Northwich Victoria as assistant boss.
Ryan spent four years in charge at Latham Park before he left just before the start of last season and was replaced by Andy Cale.
He was appointed manager of Airbus UK Broughton in March but returned to Newtown following Cale's May departure.
Assistant Pete Carter has taken temporary charge of pre-season preparations and the Robins board hope to appoint a new manager in the coming week.