I think you need to ask your network guys to change your NS name.
Remember that "phuket" doesnt' mean anything at all to a web browser -- it's actually an alias for an IP address.
E.g. Your browser has no concept of "www.sqaforums.com" -- it actually goes to '18.104.22.168' (which is translated for it by the DNS)
Lets pretend your QC server has an IP address of 22.214.171.124, someone somewhere in your organisation has set the NS name for that particular IP address to 'phuket'. You need to get them to change it to 'EAS-qualitycenter'