No pending sender appears on the receiver
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Confirm the receiver is enabled and set to Receiving.
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Confirm the sender is enabled and set to Sending.
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Confirm sender Host, Port, and Use SSL match the receiver gateway.
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Check firewall and routing from sender to receiver.
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For SSL, confirm the receiver certificate is trusted and the hostname matches the certificate.
Sender is waiting but no data appears
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Approve the pending sender on the receiver.
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Confirm Enable OPC UA Devices or Enable OPC Connections is enabled on the sender.
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Confirm whitelist and blacklist entries exactly match sender device or connection names.
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Confirm the source device or OPC connection is connected and enabled.
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Confirm source OPC items are actively subscribed on the sender.
Mirrored device or connection does not appear on the receiver
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Check the receiver gateway logs for creation failures.
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Avoid receiver-side name collisions with non-mirrored devices or existing OPC connections.
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For OPC connection mirroring, confirm the receiver has a valid local OPC UA connection or security template.
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Use targeted reset or full resync from the receiver status page after fixing the underlying issue.
SSL connection fails
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Check whether the sender is using
wssagainst the receiver HTTPS port. -
If using a trust store, confirm it is PKCS12 or JKS and contains the receiver certificate chain or issuing CA.
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Confirm the trust store password is correct.
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Confirm the configured host matches the receiver certificate name.
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Use Trust All Certificates only as a temporary diagnostic or test setting.
Status actions are missing
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Confirm the current user has write permission for the Device Mirroring status routes.
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Read-only users can view status but cannot approve, decline, revoke, reset, or request resync.