I have a client who is running SharpDesk 3.3 on 5 computers. The two Windows 10 computers seem to reliably scan to the Desk Top. However, the other three are running Windows 7 Service Pack 1. After installing SharpDesk they scan successfully but overtime, perhaps a couple days or so, they loose the ability to Scan. The MFP displays an error "Unable to access the server. Check server address on device web page." I've checked all of the configuration information and it looks correct. The only thing that will make it work is to reinstall SharpDesk in which case it will run for another couple of days or so.