Starbucks has started bumping you off their WiFi every 60 minutes. This will quickly toggle your WiFi off/on to avoid unexpected interruptions. #FWP

bounce_wifi_hourly.sh

#!/bin/sh
while true; do
    sleep 3300  # 55 min * 60 sec
    
    echo "Bouncing the wifi at `date`"
    
    # You might need to change en1 to something else.
    # ifconfig can tell you what network adapter to use
    networksetup -setairportpower en1 off
    sleep 2
    networksetup -setairportpower en1 on
done

kill_bounce.sh

ps -ef | awk '/.\/bounce_wifi_hourly.sh/{print $2}' | xargs kill