c# - Entity Framework: Server did not respond within the specified time out interval -

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i trying access remote oracle database using vpn connection. using oracle sql developer tool able connect database. when use ado.net model , devart dotconnect oracle, gives me error server did not respond in specified timeout interval.

enter image description here

any 1 has face issue?

update: increases timeout 60s default 15s. getting error:

ora-12154: tns:could not resolve connect identifier specified

1st issue quiet common server did not respond in defined time, increasing connection time should trick. append ;connection timeout = 60; (here time in seconds) connection string.

2nd after update looks tns not resolved properly: can check:

  1. do tnsping (db name in tns ora file). see should not error , connection should ok.

  2. if problem still persist check oracle home in registry have correct path in case have multiple client.


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