Hi Roysito,
First of all, please ensure the machine has got the latest updates.
For the error " s1t00 ", it usually means "Timeout expired".There may be something wrong with the connection, or the the query is getting blocked by some other process.
Please try to ping the server both with the ip address and the name to have a check.
We could run the following command line to reset the TCP/IP stack to have a check.
ipconfig /flushdns (Clear the dns cache)
nbtstat -RR (release and refesh NetBIOS names)
netsh int ip reset (reset ip settings)
netsh winsock reset (Reset Winsock Catalog)
Reboot
In addition, please turn off the firewall and the antivirus software temporarily to have a troubleshoot.
Considering this issue is related to the SQL server, we also could try to ask for help from our SQL server forum.
SQL server
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/home?forum=sqlgetstarted
Best regards
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