I have same problem as JD1. My build: Lost Vape Triade DNA250c, Digiflavor Siren 2, my DIY coil N80 Clapton NiChrome 24+36g, 5 wraps. Yesterday I made it. Resistance about 0,6 ohms, set 20W in wattage mode. All the day it was in normal. I know, clapton is not usual for MtL vaping, but I'm newbie and wanna try various sets. Tonight chipset showed me "new atty" - resistance changed - rapidly increase (about 1 ohm) and said "temp protect"... in wattage mode. I guess TC is unavailable in wattage mode...isn't it? In EScribe Atomizer Analyzer shows unstable resistance (0.9-1.2 ohms). Is that issue of mode/chipset, atty or I made anything wrong?