How do I check my DTC settings?
On the MSDTC tab, click Security Configuration under Transaction Configuration, click to select the Network DTC Access check box under Security Settings, and then click to select the following check boxes under Transaction Manager Communication: Allow Inbound. Allow Outbound.
How do I configure Microsoft DTC?
Configure MSDTC
- Open Component Services.
- Expand Component Services, expand Computers, expand My Computer, expand Distributed Transaction Coordinator, right-click Local DTC, and select Properties.
- Select the Security tab.
- Select OK to save your changes.
- If prompted to restarted the MSDTC service, select Yes.
How do I fix communication with the underlying transaction manager failed?
4 Answers
- Enable MSDTC and allow inbound/outbound transactions (via Control Panel)
- The guide for opening ports via registry – just follow the guide.
- Allow ports defined in (2) to be open in your firewall (in case you use one)
Why is MSDTC required?
Microsoft Distributed Transaction Coordinator (MSDTC) provides a mechanism for ensuring atomicity and consistency across multiple data sources. It is required if you plan on performing explicitly transacted operations across multiple data sources, or if you are installing SQL Server 2005.
How do I know if MSDTC is installed?
From the services mmc, you can get to this from Administrative Tools>Services or types services. msc from Start and hit enter. Find the Distributed Transaction Coordinator services and assure it is running.
How do I know if Msdtc is running or not?
Type net stop msdtc , and then press ENTER. Type net start msdtc , and then press ENTER. Open the Component Services Microsoft Management Console (MMC) snap-in. To do this, click Start, click Run, type dcomcnfg.exe, and then click OK.
What ports does Msdtc use?
It is worth noting that by default MS DTC uses dynamic ports. I have seen firewall rules open the following ports for MSDTC: 135, 1024-65535. Which might as well have been open all ports! However, it is possible to restrict the ports that MS-DTC uses.