Here are the instructions for disabling the Web Server on Your model of TeraStation.
On all TeraStation models, this functionality is turned off by default. TS3000, TS5000, TS7000Under 'Services', click the slider button next to 'Web Server'
TS-X,XE,RX,RV,WX,QV,6V,8VUnder 'Network', 'Web Server' Choose the 'Disable' Radio Button