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Just in case someone else encounter the same problemTrust Server Certificate=True changed to TrustServerCertificate=TrueMulti Subnet Failover=False changed to MultiSubnetFailover=FalseRemove the space in key will solve the problem
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The problem was introduced in 4.2.20176 - June 24th, 2020.
I previously use 4.2.20168 open the old project created by 4.2.20176.
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The user encountered errors when connecting to a database with version 4.2.20168. They resolved the issue by adjusting the connection string and adding Trust Server Certificate=True to the end of the ShadowConnectionString section. This change allowed them to successfully establish a connection to the database.chuck said:Working on version 4.2.20168, and encounter error Keyword not supported: 'trust server certificate'.
remove Trust Server Certificate=True, then got error Invalid connection string: Keyword not supported: 'multi subnet failover'.
remove Multi Subnet Failover=False, then got Error connecting to database: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)According https://stackoverflow.com/questions/17615260/the-certificate-chain-was-issued-by-an-authority-that-is-not-trusted-when-conn， I add Trust Server Certificate=True to the end of ShadowConnectionString section and make it work.
<ShadowConnectionString>Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Trust Server Certificate=True;Authentication=SqlPassword;Multi Subnet Failover=False</ShadowConnectionString>changed to<ShadowConnectionString>Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Authentication=SqlPassword;TrustServerCertificate=True</ShadowConnectionString>
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I just wanted to let you know in case anyone else encounters the same issueAdded TrustServerCertificate=True to TrustServer Certificate=TrueFault over to multiple subnets = False changed to Fault over to multiple subnets = FalseEliminating the space in the key will fix the issue.
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To resolve the connection string errors you encountered, you adjusted the `ShadowConnectionString` configuration in a specific sequence. Here’s a summary of the process and the final configuration that worked:1. **Initial Error:**You encountered an error indicating that the keyword `Trust Server Certificate` was not supported.```Keyword not supported: 'trust server certificate'.```2. **Attempted Fix:**You removed `Trust Server Certificate=True`, which led to a new error regarding `Multi Subnet Failover`.```Invalid connection string: Keyword not supported: 'multi subnet failover'.```3. **Subsequent Error:**Removing `Multi Subnet Failover=False` resulted in an SSL-related error during the login process.```Error connecting to database: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)```4. **Final Adjustment:**Based on the solution found on StackOverflow, you added `Trust Server Certificate=True` back to the connection string, ensuring it was placed at the end of the `ShadowConnectionString` section.### Final Connection StringHere is the final, corrected `ShadowConnectionString` that resolved the errors:```xml<ShadowConnectionString>Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Authentication=SqlPassword;TrustServerCertificate=True</ShadowConnectionString>```### Explanation of Changes- **Trust Server Certificate=True**: This parameter tells the client to trust the server's SSL certificate without validating it. This resolves the SSL Provider error regarding the certificate chain being issued by an authority that is not trusted.- **Placement and Formatting**: By placing `Trust Server Certificate=True` at the end of the connection string and ensuring correct formatting (no spaces within the keyword), the connection string is interpreted correctly by the connection manager.### ConclusionThese adjustments resolved the connection issues by instructing the system to trust the server certificate and removing unsupported keywords. This ensures a successful and secure connection to the database.
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In version 4.2.20168, encountering errors related to the connection string parameters 'Trust Server Certificate' and 'Multi Subnet Failover' prompted troubleshooting steps. Initially, removing 'Trust Server Certificate=True' led to an error regarding 'Multi Subnet Failover'. Subsequently, eliminating 'Multi Subnet Failover=False' resulted in a new error concerning the SSL certificate chain. Following guidance from Stack Overflow, the resolution involved appending 'Trust Server Certificate=True' to the end of the ShadowConnectionString section. This adjustment ensured successful database connectivity, emphasizing the importance of meticulous configuration in resolving connection issues.
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To address the issues you're encountering with your connection string, let's break down the steps and provide a comprehensive solution.
Problem Breakdown
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Initial Error:
- "Keyword not supported: 'trust server certificate'"
- Removed
Trust Server Certificate=True
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Second Error:
- "Keyword not supported: 'multi subnet failover'"
- Removed
Multi Subnet Failover=False
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Third Error:
- "A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)"
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Solution:
- Added
Trust Server Certificate=Truewhich made the connection work.
- Added
Solution Explanation
1. Correcting the Keywords
Based on the errors, the keywords used in your connection string need to be properly formatted. Specifically:
- Use
TrustServerCertificateinstead ofTrust Server Certificate. - Remove
Multi Subnet Failoverif it's not supported.
2. Updated Connection String
The correct format should be:
<p><ShadowConnectionString></p><p> Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=your_password;Pooling=False;Encrypt=False;TrustServerCertificate=True;Authentication=SqlPassword;</p><p></ShadowConnectionString></p>
Steps to Resolve the Issue
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Correct the Connection String Syntax:
- Ensure there are no spaces in
TrustServerCertificate. - Remove
Multi Subnet Failoverif it's not supported or necessary.
- Ensure there are no spaces in
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Trusting the Server Certificate:
- Setting
TrustServerCertificate=Trueinstructs the SQL client to trust the server's certificate without validating it against a trusted certificate authority. This is useful in development or testing environments but should be used with caution in production.
- Setting
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Using Proper Authentication:
- Ensure that the
User IDandPasswordare correct. - The
Authentication=SqlPasswordsetting is used for SQL Server authentication.
- Ensure that the
Complete Corrected Connection String
Here is the corrected connection string based on the provided information:
<p><ShadowConnectionString></p><p> Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=your_password;Pooling=False;Encrypt=False;TrustServerCertificate=True;Authentication=SqlPassword;</p><p></ShadowConnectionString></p>
Additional Considerations
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Security: Using
TrustServerCertificate=Truebypasses the validation of the server's SSL certificate. This can expose your connection to security risks, such as man-in-the-middle attacks. For production environments, it is recommended to use a trusted certificate issued by a recognized certificate authority. - Password Management: Ensure that your password is securely managed and not hardcoded in the configuration files.
Summary
- Correct the keywords in the connection string (
TrustServerCertificate). - Remove unsupported keywords (
Multi Subnet Failover). - Ensure the connection string is properly formatted and secure.
If you follow these steps, your connection string should work correctly without the errors you encountered. If you need further assistance, feel free to ask!
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First Problem: You saw an error saying "Keyword not supported: 'trust server certificate'". To fix this, you removed
Trust Server Certificate=Truefrom your connection details.Second Problem: Then you got another error saying "Keyword not supported: 'multi subnet failover'". To fix this, you removed
Multi Subnet Failover=Falsefrom your connection details.-
Third Problem: After that, you faced another error saying "Error connecting to database.. The certificate chain was issued by an authority that is not trusted." This means the system didn't trust the security certificate.
Final Solution: You followed advice from a website and added
Trust Server Certificate=Trueagain at the end of your connection details. Now it worked!
So, here is what your connection details should look like:
<p><ShadowConnectionString>Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Authentication=SqlPassword;TrustServerCertificate=True</ShadowConnectionString></p><div></div>
This way, you should be able to connect without any problems. If you still facing any issue, then do let me know i'll try to figure out!
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You resolved the connection string issues by adding
TrustServerCertificate=Trueto bypass SSL certificate validation. Removing unnecessary options likeMulti Subnet Failover=Falsehelped stabilize the connection. The final connection string should look like this:<ShadowConnectionString>Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Authentication=SqlPassword;TrustServerCertificate=True</ShadowConnectionString>
This ensures a successful connection despite the certificate trust issue.
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It seems you're facing issues with connection string parameters that are not supported by the version you're using. To resolve this:
Remove Unsupported Keywords: Start by removing the unsupported keywords,
Trust Server Certificate=TrueandMulti Subnet Failover=False.SSL Certificate Error: When you remove
Trust Server Certificate=True, it results in an SSL certificate error. This suggests tha
t your server's SSL certificate is not trusted.Final Solution: Ensure your connection string in
<ShadowConnectionString>hasTrustServerCertificate=True, without spaces, and does not include unsupported keywords:- <ShadowConnectionString>Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;TrustServerCertificate=True;Authentication=SqlPassword</ShadowConnectionString>
This should resolve your connection issues.
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It seems like the issue stemmed from conflicting connection string parameters, particularly the unsupported
Trust Server CertificateandMulti Subnet Failover. You resolved the SSL trust error by modifying the connection string to includeTrustServerCertificate=Truewithout spaces and removing the unsupported parameters.This allowed the connection to succeed despite the SSL certificate not being trusted. For others facing this issue, ensuring correct parameter syntax and addressing SSL trust by settingTrustServerCertificate=Trueshould help resolve similar errors.
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In version 4.2.20168, encountering errors related to the connection string parameters 'Trust Server Certificate' and 'Multi Subnet Failover' prompted troubleshooting steps. Initially, removing 'Trust Server Certificate=True' led to an error regarding 'Multi Subnet Failover'. Subsequently, eliminating 'Multi Subnet Failover=False' resulted in a new error concerning the SSL certificate chain. Following guidance from Stack Overflow, the resolution involved appending 'Trust Server Certificate=True' to the end of the ShadowConnectionString section. This adjustment ensured successful database connectivity, emphasizing the importance of meticulous configuration in resolving connection issues.
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Use `TrustServerCertificate=True` (no spaces) in the connection string, to resolve the issue. Make sure other parameters are correctly formatted to avoid connection errors.
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It seems the issue revolves around SSL and connection string compatibility. The errors suggest that the database connection requires properly configured SSL certificates. Double-check your connection string and ensure the server's SSL certificate is trusted, or consider adding `TrustServerCertificate=True` if it's safe in your environment. Properly configuring the certificate on the server might also resolve the issue.
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This error typically occurs when the connection string includes a parameter that isn't recognized by the database provider. For example, in SQL Server, the correct parameter is
TrustServerCertificate(without spaces). Double-check the spelling and format of the connection string. Updating your database client or driver to the latest version can also resolve compatibility issues. -
you're dealing with a frustrating issue related to the 'Trust Server Certificate' keyword! A common solution is to ensure that the server certificate is correctly installed and the connection string is set up properly. Double-check your connection settings and try using
TrustServerCertificate=Truein the connection string if you're bypassing certificate validation. If this doesn't resolve the issue, reviewing server configurations and ensuring your SSL/TLS certificates are up-to-date might help. Hopefully, that provides some direction -
Use `TrustServerCertificate=True` (no spaces) in the connection string, to resolve the issue. Make sure other parameters are correctly formatted to avoid connection errors.
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This error usually arises when the connection string includes a parameter that the database provider does not recognize or support. For example, in PostgreSQL, the correct parameter for enabling SSL connections is
SSLMode(with proper capitalization). If the parameter is misspelled, incorrectly formatted, or has invalid values, the database connection may fail. It’s important to double-check the spelling, case sensitivity, and format of each parameter in the connection string to ensure they match the database provider’s requirements. Additionally, compatibility issues may occur if you're using an outdated version of your database client or driver. In such cases, updating your client or driver to the latest version can often resolve the issue, as newer versions are more likely to support the latest connection string parameters and database features. Be sure to consult the official documentation for your specific database provider to ensure the correct parameters are used in your connection string. -
The error message "trust server certificate" typically indicates that there is an issue with the server's SSL certificate, which is crucial for establishing a secure connection. Users encountering this message should be cautious, as it may suggest potential security risks or misconfigurations that could expose sensitive data. It's important to ensure that the server's certificate is valid and trusted to maintain secure communications.
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Thank you for the informative discussion on the 'keyword not supported' error and trust server certificates. It's always helpful to understand the specific errors that may arise with server communication and how we can resolve them. I appreciate the clear explanation of the issue, as these types of errors can sometimes be tricky to troubleshoot. Looking forward to learning more from the community's insights and solutions.
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It looks like you're encountering an issue with the
'trust server certificate'option, possibly in a database connection string or some other configuration. Could you provide more context? Are you working with:- SQL Server (MSSQL) and JDBC/ODBC connections?
- Python (e.g., pyodbc, SQLAlchemy)?
- C# (.NET) and SQL Server?
- Some other tool or framework?
If you're using SQL Server, try setting
TrustServerCertificate=Trueinstead of'trust server certificate'. Some systems use different capitalization or syntax.Let me know more details so I can help troubleshoot! 🚀
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The issue you encountered stems from the fact that version 4.2.20168 of your driver doesn’t recognize certain keywords in your connection string. Initially, you received an error for “trust server certificate” because that keyword (with spaces) isn’t supported in this version. Removing it led to another error for “multi subnet failover,” indicating that this parameter, too, isn’t supported.
The certificate chain error then occurred because, without the ability to trust the server certificate explicitly, the connection process couldn’t bypass the SSL validation—the certificate was issued by an untrusted authority. The Stack Overflow discussion you mentioned pointed out that appending a correctly formatted trust parameter at the end of your connection string could resolve this.
In your final working string, you removed the unsupported “Multi Subnet Failover=False” and changed “Trust Server Certificate=True” to “TrustServerCertificate=True” (without the spaces), like so:
Here is code<p><ShadowConnectionString></p><p> Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Authentication=SqlPassword;TrustServerCertificate=True</p><p></ShadowConnectionString></p>
This adjustment works because the driver now correctly recognizes the keyword and bypasses the SSL certificate validation, allowing a successful connection. Essentially, you’ve aligned your connection string with the driver’s supported parameters, which is why this solution resolves the error.
Lark from Profit Parrot -
Thank you it work for melarkbegin said:The issue you encountered stems from the fact that version 4.2.20168 of your driver doesn’t recognize certain keywords in your connection string. Initially, you received an error for “trust server certificate” because that keyword (with spaces) isn’t supported in this version. Removing it led to another error for “multi subnet failover,” indicating that this parameter, too, isn’t supported.
The certificate chain error then occurred because, without the ability to trust the server certificate explicitly, the connection process couldn’t bypass the SSL validation—the certificate was issued by an untrusted authority. The Stack Overflow discussion you mentioned pointed out that appending a correctly formatted trust parameter at the end of your connection string could resolve this.
In your final working string, you removed the unsupported “Multi Subnet Failover=False” and changed “Trust Server Certificate=True” to “TrustServerCertificate=True” (without the spaces), like so:
Here is code<p><ShadowConnectionString></p><p> Data Source=ip;Initial Catalog=Chuck2_Connect5;User ID=clu;Password=;Pooling=False;Encrypt=False;Authentication=SqlPassword;TrustServerCertificate=True</p><p></ShadowConnectionString></p>
This adjustment works because the driver now correctly recognizes the keyword and bypasses the SSL certificate validation, allowing a successful connection. Essentially, you’ve aligned your connection string with the driver’s supported parameters, which is why this solution resolves the error.
Lark from Profit Parrot
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