Cbbackup error when trying to do a backup

C:\couchbaseBackup>C:"Program Files"Couchbase\Server\bin\cbbackup http://localhost:8091 c:\couchbaseBackup -u -p
(u’error: SASL auth socket error: :11210, [Errno 10057]
A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied’, None)

couchbase server 5.1 windows 2012 server

any suggestions/ideas welcome and thank you in advance

Hi there,
Please try adding your username and password after the -u and -p .
see examples here - https://docs.couchbase.com/server/5.1/cli/cbbackup-tool.html

so your command should look like (use your admin/password) -
cbbackup http://localhost:8091 c:\couchbaseBackup -u Administrator -p password

Let me know if that works for you.