Aeries does not recommend adjusting the timeout value beyond the default of 20 minutes.  However, if your district decides to extend the timeout, here are the steps necessary to make the adjustment. This only applies to self-hosted districts, and the changes must be made on the Aeries web server (or servers) by a systems administrator.

First, open Internet Information Services (IIS).  Choose the root of IIS:


Select the ASP icon:

Expand the Services sections, locate the Time-out variable and adjust it to your desired value.  For security purposes, this value should not exceed 40 minutes.

Second, select the root of IIS again and locate the Session State icon:

Under Cookie Settings, adjust the Time-out value to your desired value:

Lastly, locate the Application Pool that your Aeries site(s) are using, right click the application pool and choose "Advanced Settings...".  Under the Process Model section, change the value of "Idle Time-out" to your desired value:

As a note, there may be certain features within Aeries that cannot complete in the time allotted and the system may prompt you to increase the timeout.  This is referencing the execution timeout property which can be adjusted by selecting "Configuration Editor", "system.web/httpRuntime" from the dropdown menu, and increasing the executionTimeout default value of 1:50.  This change can boot users off of Aeries, so it should be completed during non-peak hours where possible.