I'm running v12.5 in production and v15 in test mode on two Windows 10 computers. Things were working fine until I installed the Microsoft KB patches issued on 10/27. Skype Connect for inbound no longer works on either computer. 3CX looks like it's processing the call, but the caller does not hear any prompts from Automated Attendant. Skype outbound works fine. I have a secondary provider of Call Centric. It works perfectly inbound/out on both computers even after the KB patches were applied. The patches in question seem to be KB3197594 and KB3199986. I rolled my system back to prior to the patches and it's working fine again. Any ideas what might be going on? Anyone else experienced this problem? Note: No changes to any firewall or network configs post KB update.