System resiliency with temporary access

A method for use by a system computer for granting access to a network resource, the method comprising:

• receiving, in a first session, a first request for accessing the network resource, the first request comprising first authorization information of a user of an access computer;
• initiating, while in the first session and using the first authorization information, a first authorization process with one or more authorization computers;
• determining a failure relating to the first authorization process initiated with the one or more authorization computers;
• and
• upon determining the failure, sending a second request indicating a temporary access token is to be delivered to the access computer, the temporary access token to be delivered to the access computer in response to the access computer executing a session refresh for initiating a second session.