Hello, I'm currently using v15.5.0 (Pro version). I don't see the SP3 update in the management console. The PBX is installed in a Windows Server 2012 R2 copy. At the server, I can successfully ping download-us.3cx.com. The 3CX copy was fresh install at 15.5 with v14 backup. Tested different DOWNLOADS_URL values: https://download-us.3cx.com (and the http version) https://downloads.3cx.com/downloads/3cxpbx/ https://downloads.3cx.com/downloads/3cxpbxexpress/ Attached are screenshot of DOWNLOADS_URL setting and the the current Update screen.