Restoring bucket with SASL Auth

Hi everyone,
I got stuck with a problem which seem to be pretty basic.
I have 2 machines in my network. 10.1.2.3 and 10.4.5.6 I had backup from 10.1.2.3 to my workstation pc and want to restore that backup in 10.4.5.6. What I did is as follows:
./cbrestore /tmp/mybackup http://10.4.5.6:8091 -u Administrator -p Passw0rd -b default -B default
The error I face with is:

2016-12-01 17:46:00,666: s0 error: CBSink.connect() for send: error: SASL auth exception: 10.255.0.12:11210, user: default
2016-12-01 17:46:00,667: s0 error: async operation: error: SASL auth exception: 10.255.0.12:11210, user: default on sink: http://Administrator:Passw0rd@10.4.5.6.com:8091(default@10.6.3.30:8091)
error: SASL auth exception: 10.255.0.12:11210, user: default

Since this is default bucket, it seems to be SASL authenticated yet, I set no password for it. I got really stuck with this. I tried to change the auth with the following curl call:

curl -X POST -u Administrator:Passw0rd 
  -d authType=none
  http://10.4.5.6:8091/pools/default/buckets/acache

And the corresponding error is:
> Requested resource not found.
I could not figure out what is wrong. Any help would be great.

Thanks in advance