Light Transport; Low Wing; 2 Turboprop Eng
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 102; Flight Crew Total 16320; Flight Crew Type 300
Aircraft Equipment Problem Less Severe; Deviation - Track / Heading All Types; Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence
Flight Crew Executed Go Around / Missed Approach
Aircraft; Equipment / Tooling; Weather
While being vectored for the 22Left approach at EWR airport we were cleared for the approach; while initially getting a good signal from the ILS (instrument landing System) it became unreliable and unreadable.  We were told by New York approach to contact Newark Tower.  When we contacted the Tower we were told that we were right of course and just a few minutes we were told that the Tower had received a low altitude warning and were told to execute a missed approach.  We executed the missed approach and contacted New York Departure then were vectored for another approach.  We received a good signal and completed the approach and landed safely.
Corporate First Officer reported encountering intermittent ILS (Instrument landing System) anomaly.