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We report two microlensing planet candidates discovered by the KMTNet surveyin $2017$. However, both events have the 2L1S/1L2S degeneracy, which is anobstacle to claiming the discovery of the planets with certainty unless thedegeneracy can be resolved. For KMT-2017-BLG-0962, the degeneracy cannot beresolved. If the 2L1S solution is correct, KMT-2017-BLG-0962 might be producedby a super Jupiter-mass planet orbiting a mid-M dwarf host star. ForKMT-2017-BLG-1119, the light curve modeling favors the 2L1S solution buthigher-resolution observations of the baseline object tend to support the 1L2Sinterpretation rather than the planetary interpretation. This degeneracy mightbe resolved by a future measurement of the lens-source relative proper motion.This study shows the problem of resolving 2L1S/1L2S degeneracy exists over amuch wider range of conditions than those considered by the theoretical studyof Gaudi (1998).

The 2L1S/1L2S Degeneracy for Two Microlensing Planet Candidates Discovered by the KMTNet Survey in 2017