How to fix [Simba][DriverOAuthSupport] Authentication failed: invalid_grant error?

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I'm using ODBC connector to connect to data in Google BigQuery which was working fine but is now giving this error.

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Would be grateful if you could help advice how to fix this error.

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@Mishal, As you have mentioned in the comment that the issue was because of an internal VPN issue and the issue is now fixed.

There are four types of problems that tend to occur with VPN connections. These include:

1.The VPN connection being rejected.
2.The acceptance of an unauthorized connection.
3.The inability to reach locations that lie beyond the VPN server.
4.The inability to establish a tunnel.

For more information you can refer to this document.