I have an app called iTrash which is an app deleter. You drag and drop an application onto it and it searches your drive for any further files related to the original app. It's started causing me problems. Every time I drop an app on it I'm getting 'There was a problem connecting to the server "iMac.local". This file server is available on your computer. Access the volumes and files locally.' dialog box. iMac is my computer's network name. I click on OK, a second identical box pops up, click OK a second time and it goes away until I try to delete another app. I can't for the life of my figure out how to fix this. I have tried deleting and re-installing the iTrash app (including plists). I have contacted the developer, and whilst they responded quickly at this point they don't know how to solve the problem. I have searched my Keychain for anything referring to iMac.local and deleted it. The thing is I'm not convinced it's entirely iTrash's fault. Why does my Mac think my local drive is a network drive? Is there somewhere I can reset my Mac's 'memory' of these drives? I have made sure there aren't any specific drive logins in my Login Items. I have cleared the history from Finder / Connect to Server. I sometimes use Screen Sharing, accessing my iMac from my MacBook whilst on the same local network. Running macOS Sierra 10.12.3.