Thanks ShiellaGraceA. However, we have already gone through those steps. As mentioned not only did we do those steps we also completely replaced the computer hosting files and running Quickbooks Database Manager which means Quickbooks was installed on a new OS image and on new hardware that it had not been installed on before. Inbound/Outbound firewall rules were also manually entered as part of troubleshooting but that also is not a solution for us.