I just installed WSUS on Server 2016 and doesnt seem like much of a difference from 2012 R2 in this relation, but something is not right. WSUS can only detect 2 out of the 140+ more PC's in our company. GPO has been configured correctly, as far as i can tell. If anyone could help me with this. Just tell me what information i need to provide you to give me some help.