Two distribution switches, DSW1 and DSW2, share HSRP group 10 for VLAN 20's default gateway. DSW1 is configured with priority 150 and DSW2 with the default priority. During maintenance, DSW1 was reloaded; when it came back online, users noticed DSW2 remained the active router even though DSW1 has the higher priority. What must be configured on DSW1 to make it reclaim the active role automatically when it recovers?