1. Change the control center Idle Timeout value under Manage > Locations > click on name > Modify Hotspot Data > Set Default Limits.
  2. Configure the Idle Timeout and Keepalive Timeout values under IP > Hotspot > Servers tab > hotspot1.  

3. Make sure DHCP Lease Time is also set to a high value. IP > DHCP server > DHCP tab > Lease Time.

4. Set IP > Hotspot > User Profiles > (default) Keepalive Timeout and MAC Cookie Timeout - same value as above

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