You are not the only person experiencing difficulties using QuickBooks due to problems with the QBDBMgrN (QuickBooks Database Server Manager) service. While using QuickBooks on Windows operating systems, many users encounter this issue. Users frequently ask questions like "QuickBooks Database Server Manager Stopped" and "QBDBMgrN not running on this computer" in the QB support forums. When the QBDBMgrN service encounters errors like these, it's because the Windows firewall is conflicting with it and preventing it from connecting to the internet. The good news is that setting up the Windows firewall and its ports will allow you to quickly resolve the issue. Due to the possibility of data loss from even one blunder, be sure to carefully follow each step. For thorough instructions on why QuickBooks DB32 Service won't start, read the entire article.