Many users have reported Quickbooks Database Server Manager has Stopped Workingas an unexpected problem while utilizing this service. So, you're not alone in having this problem; if you're having trouble with QBDSM not working, don't fret; it's a simple fix. However, there are a number of reasons for the issue, the most likely of which is the involvement of the Windows firewall, which prohibits it from connecting to the internet. As a result, the QBDBMgrN service will not start or open.