Error [516] after turning off VPN.

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Symptoms

Without VPN the resolved IP is an external address, RDP connection via internet > works fine

With VPN the IP of target server is changed, now its internal address, we work in LAN > works fine

After disconnecting from VPN IP address changes back to external one > unable to start published app, an error occurs:

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Cause

Turning OFF VPN results to DNS Cache issue.

Resolution

Multiple connections shall be used as a workaround.

Create one with external IP and another one with internal. In this scenario, connection will work properly.

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