Why are Robots disconnected even with all configurations/settings correct?
Issue Description
UiPath Robot Error. The read operation failed, see inner exception.
System.Security.Authentication.AuthenticationException: "Authentication failed, see inner exception.
Logs will show:
- ISettingsOperations.ConnectToServer threw System IO.IOException: "The read operation failed see Inner Exception."
and
- The TLS connection request has failed exceptions.
Resolution
- Check the Schannel SSP settings.
- These are the settings that check HKLM:
SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL
- Take a screenshot or export the registry in case a support ticket is required
NOTE: If the path above is empty, check the following registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.3\Client
- If TLS 1.3 is enabled, it indicates that is on Windows Server 2022 or Windows 11. If it is not possible to upgrade, remove or disable TLS 1.3. To disable it, change the value for Enabled to 0.
- If the previous steps do not identify the issue, get a Wireshark trace
- Install Wireshark.
- Open Internet browser
- Clear browser cache
- Open Wireshark
- Click on "Capture > Interfaces". A pop-up window will show up
- Capture traffic that goes through the ethernet driver. Click on the Start button to start the trace
- Reproduce the issue
- Go back to the Wireshark screen and press Ctrl + E to stop capturing
- After the traffic capture is stopped, save the captured traffic into a *.pcap format file and attach it to the support ticket.
- If not using Cloud, include the IP address for the Orchestrator URL. If using Cloud let support know.
- Run the Diagnostic tool and collect the event view logs to provide to support.
fvalencia
hentsou_mamy