SOLVED! RADIUS Authentication Failed (MSCHAP error: “E=649” R=0 V=3)
Client setup: Sonicwall NSA 4600 and NPS on Server 2016. Error: RADIUS Authentication Failed (MSCHAP error: E=649 R=0 V=3) Tried just about everything to fix this one. Gradually unpicked every single bit of security right back to clear password and nothing seemed to work. In the end I went into the user’s account and under…