# 2305, Object association prohibits operation when saving a domain

## Symptoms

The following error occurs when trying to save a domain in RCP:

```
An error has occurred, please read the message below:<br></br>Nameserver creation or update failed: <br></br>n1.nameserver.tld, 2305, Object association prohibits operation 
```

## Cause

 Nameserver ns.nameserver.tld doesn't exist in the DNS service.

No data about nameserver.tld is retrieved from WHOIS output nor there is an answer when querying its A record via a DNS lookup utility.

```
dig n1.nameserver.tld <br></br><br></br>; <<>> DiG 9.9.4-RedHat-9.9.4-38.el7_3.3 <<>> n1.nameserver.tld<br></br>;; global options: +cmd<br></br>;; Got answer:<br></br>;; ->>HEADER<<- opcode: QUERY, status: <strong>NXDOMAIN</strong>, id: 47410<br></br>;; flags: qr rd ra; QUERY: 1, <strong>ANSWER: 0</strong>, AUTHORITY: 1, ADDITIONAL: 1
```

## Resolution

Make sure third-party nameservers that you are trying to assign to a domain actually exist and resolve publicly.