One problem. One next check.
Understand errors.
Reconnect data.
The data source cannot be found. An import changes values. The store shows the wrong stock level. Here you will find an initial assessment and useful next questions for your systems.
ODBC & Driver
When an application cannot find its data connection.
Database access
When the server, authentication or encryption stops the connection.
SQL Server: connection failed
A “network-related or instance-specific error” initially describes a failed connection.
Assess the problemMySQL connection disrupted after an update
After an update, the client and server must still support the same connection and authentication methods.
Assess the problemDatabase access: SSL certificate error
A connection can be encrypted and still fail because the server certificate cannot be verified reliably.
Assess the problemImport & Export
When existing files do not yet provide usable data.
Interfaces & APIs
When existing access is no longer accepted.
ERP & Online store
When the same stock looks different in two places.
Legacy systems & Transfer
When valuable data must remain but the existing path is unavailable.
These notes help you assess the situation. The appropriate step depends on your applications, versions and access. Before making a specific change, we clarify ongoing operations.