Unable to see the Reset Security Token option

Most common resolutions

There are a few different reasons the Reset Security Token feature may not be available. 

• IP Restrictions in the Login IP Ranges
• Network Access missing from Security Controls
• User Profile is Corrupted

IP Restrictions in the Login IP Ranges

If there are any IP range values defined the Reset My Security Token option will not be available.
(e.g. Start IP: 192.162.0.0 _ End IP: 192.162.0.255)

In order for the Reset My Security Token option to appear you will need to remove the Login IP Ranges or change the User to a profile that does not have Login IP Ranges listed.
 

In Salesforce Classic
Unlimited, Performance or Enterprise, system administrators can verify if there are IP values in the Login IP ranges by selecting: Setup | Manage Users | Users | Profile| Profile name | Login IP Ranges.

• Professional, Group or Contact Manager, system administrators can verify if there are IP values in the Login IP ranges by selecting: Setup | Security Controls | Session Settings.

 
In Lightning Experience
Unlimited, Performance or Enterprise, system administrators can verify if there are IP values in the Login IP ranges by clicking going on the gear icon | Setup Home | Users | Profiles | select the profile name | Login IP Ranges.

• Professional, Group or Contact Manager, system administrators can verify if there are IP values in the Login IP ranges by clicking going on the gear icon | Setup Home | Security | Session Settings.

Network Access missing from Security Controls

System administrators can confirm if Network Access is missing by following these steps:

• Go to Setup
• On the Quick Find box, enter Network Access.
• If you don't see the 'Network Access' link above, the system administrator can log a Case with Support to request the following features enabled for the organization:
• Login Challenge Enabled
• Login with API Token

User Profile is Corrupted

If none of the previously scenarios are true try editing the User profile that's missing the security token and save it without making any modifications. This will reset the profile, and might result in the token option being available.

If the information provided does not resolve the issue open a case with Salesforce Support  for assistance.

Note: The ability to reset the security token is not offered to Users with the Chatter-External and the Chatter-Free licenses.

See also:
Reset Your Security Token