I'm continually having issues with users randomly loosing their mapped printers inside an application. It can occur in any and every application. Adobe Reader, Office Apps, some of my business level apps. It occurs even with client 9.150. I'm on PS4.0 with a few printing related hotfixes. I still have to roll out R01. I'm using actual printer drivers from HP and Dell, mostly all PCL, so no UPD. The fix is always the same. Have the user close down their application and re-open it. If there are multiple apps running on the server with the app that has lost the printer, they may need to close those applications as well? I've got nothing wacky going on with the way I'm running the farm or printer mappings. It's all pretty standard and almost as basic as it can be, in my opinion. Is this just something I need to get over and expect to just always occur, or is there same way to solve this complete or make it occur far less then it does?