Hi @LEIDY JOHANNA RAMIREZ GONZALEZ ,
Could you describe in detail the process of sending the error? You could check the following link to see if your issue is resolved: https://stackoverflow.com/questions/23368885/signalr-owin-self-host-on-linux-mono-socketexception-when-clients-lose-connectio/30583109#30583109
Best Regards,
Joy
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