PEO can't talk to SQl on PE

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Situation: when installing Patron Edge Online (PEO), PEO can't talk to SQL on PE.

Case 1: Make sure all PE requested port are open. These ports are 2030, 2025, 2028, 2050 and 9955 or 9966.

Case 2: If the PE and PEO are in the different subnet, try use Server Authentication instead of Windows authentication. If you use Windows authentication, make sure both servers are using the same user name and password.

Case 3: It could be the name resolution. You may try IP address.