Changes
On both the database server and the application server, you have to make sure the firewall doesn't block the MSDTC service.
Technically, MSDTC uses the RPC endpoint mapping service on port 135 to determine the port for the DTC endpoint, which can be dynamic (within the range of 49152-65535).
{{attention|There should be an existing enabled rule for this already, but the RPC port 135 must be opened.}}
There are two strategies to open the required ports:
*** Add value: Name "UseInternetPorts", Type "REG_SZ", value "Y"
{{attention|If you use a restricted ports range, you have to create new rules to open that range specifically (inbound and outbound).}}
= Test-Dtc and DTCPing =
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[[Category:Resources (internal)|Solve MSDTC-related problems]][[Category:ServiceDatabase|Solve MSDTC-related problems]]
[[Category:How-To|Solve MSDTC-related problems]]
[[Category:Install|Solve MSDTC-related problems]]
[[Category:Installing|Solve MSDTC-related problems]]
[[Category:DatabaseResources (internal)|Solve MSDTC-related problems]][[Category:Service|Solve MSDTC-related problems]]
