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If No, proceed to the next step 3. At a command prompt, type this command to connect to the mail server. If you cannot connect, there is a networking problem. Another program or security permission might be blocking the port or connections to the server. If you can connect, proceed to the next step 4. telnet <SMTP server> 25. Network is down. A socket operation encountered a dead network. ... May also be returned by setsockopt if an attempt is made to set SO_KEEPALIVE on a connection that has already failed. 10053: ... Socket is not connected. A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket. Feb 10, 2021 · class=" fc-falcon">I am sending scripted failure log, and scripted success log. The success log is 4 months old when we didn't had the issue. The manual success log I don't have right now as it was not enabled earlier, will share it once we capture it.. Refer to the associated detail messages from this client for each of the software update installations that were attempted for status on each update. Informational. 11256. Software update installation failed: the scheduled installation window expired while software update installation was not complete.