Please follow the steps below to reconfigure and update the ePortal Master URL on the server:
Go to your ePortal server and search IIS.
Expand Sites and expand Default Website.
Right-click eportal and select Explore.
Search for Web.config file and open this with Notepad.
Search for Master_URL and replace the value="http://localhost/eportalV2/" to your eportal's URL e.g. value="https://192.168.1.1/eportalv2/"
Click Save and overwrite the file.
Master URL is your company's eportal login page eg, https://192.168.1.1/eportalv2/login.aspx (The link in this article is not valid, and it is only for your reference to set in your server)