It depends where you are in the Visa process. Those who have had their interview and were told at the interview they needed a waiver take priority. My husband's solo I-212 took 45 days from the time it was sent to the day it was approved.
If you have not yet had your interview and have applied for the I-212 before the interview then you are looking at up to 6 months, with the average being 4-6.
Adonia214 got a reaction from adrianamiguel2018 in How long to get approved I-212