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Anonymous
Not applicable

Pre-login Handshake Error

Hello guys! Hoping you can help me with this error. 

Error Message:
Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=584; handshake=14415; ;The wait operation timed out. The exception was raised by the IDbConnection interface.

 

1 ACCEPTED SOLUTION

It might be that Synapse access controls are preventing your specific IP address from connecting:

https://docs.microsoft.com/en-us/azure/azure-sql/database/network-access-controls-overview?view=azur...

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View solution in original post

4 REPLIES 4
otravers
Community Champion
Community Champion

Sounds like an error while trying to connect to a SQL server? You'll have to provide more details about the context in which this happens, preferably with screenshots.

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1. How to get your question answered quickly - good questions get good answers!
2. Learning how to fish > being spoon-fed without active thinking.
3. Please accept as a solution posts that resolve your questions.
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BI Blog: Datamarts | RLS/OLS | Dev Tools | Languages | Aggregations | XMLA/APIs | Field Parameters | Custom Visuals
Anonymous
Not applicable

The context behind is that, I have to load the data table from Azure Synapse.

What's weird is that all of my other colleague was able to do so except me. Appreciate your help on this

It might be that Synapse access controls are preventing your specific IP address from connecting:

https://docs.microsoft.com/en-us/azure/azure-sql/database/network-access-controls-overview?view=azur...

------------------------------------------------
1. How to get your question answered quickly - good questions get good answers!
2. Learning how to fish > being spoon-fed without active thinking.
3. Please accept as a solution posts that resolve your questions.
------------------------------------------------
BI Blog: Datamarts | RLS/OLS | Dev Tools | Languages | Aggregations | XMLA/APIs | Field Parameters | Custom Visuals
Anonymous
Not applicable

This is the entire error

 

DataSource.Error: Microsoft SQL: Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=610; handshake=29390;
Details:
DataSourceKind=SQL
DataSourcePath=xxx
Message=Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=610; handshake=29390;
ErrorCode=-2146232060
Number=-2
Class=11

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