One of my branches will not download the v15 SP4 update. The zip file appears in C:\ProgramData\3CX\Data\Updates but never reaches full size. It seemingly stops at random. It gets as high as 8MB but never to the full 79,876 kb. The branch has a 25 Mb/s Internet connection which works fine for everything else. I had this problem once in another branch and copied servicepack.zip from another pbx to one of my internal web servers and changed the URL it downloaded from. That was under v14. In v15 I can't find the URL in Parameters. Can I just copy the Updates directory from a machine that has successfully run the update and run Updater2.exe? If not, what should I do?