Set Trusted IP Ranges for Your Organization #inSalesforce

Set Trusted IP Ranges for Your Organization

This define a list of IP addresses from which users can log in without receiving a login challenge for verification of their identity, such as a code sent to their mobile phone.

Enter the range of valid IP addresses from which user logins are trusted. Users logging in from trusted IP addresses are not asked to activate their computers and may use their user password instead of a security token to log in to the API or a desktop client such as Connect for Outlook, Connect Offline, Connect for Office, Connect for Lotus Notes, or the Data Loader.

Steps:

Setup | Network Access | New | Enter a valid IP address in the Start IP Address field and a higher IP address in the End IP Address field | Save

Reference: https://help.salesforce.com/s/articleView?id=sf.security_networkaccess.htm&type=5