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junoreactor

macrumors member
Original poster
Mar 27, 2019
59
11
If a wifi network disappears (maybe out of range or losing power) then this MacBookPro8,1 (Mojave 10.14.6) won't auto rejoin unless I click it again manually or toggle wifi on and off.
Yes the network is set to Auto Join.

I use this script as a cheap workaround, but wondering if I can address the issue directly.

Code:
#!/bin/bash

# Interval to check and toggle Wi-Fi (in seconds)
INTERVAL=30

# Get the correct network interface name for Wi-Fi
WIFI_INTERFACE=$(networksetup -listallhardwareports | grep -A 1 "Wi-Fi" | tail -n 1 | awk '{print $NF}')

# Function to check Wi-Fi status and toggle if necessary
toggle_wifi_if_needed() {
    # Get the Wi-Fi status (on/off)
    WIFI_STATUS=$(networksetup -getairportpower "$WIFI_INTERFACE" | awk '{print $4}')
    
    # Check if Wi-Fi is on
    if [[ "$WIFI_STATUS" == "On" ]]; then
        # Check if Wi-Fi is connected to a network
        SSID=$(networksetup -getairportnetwork "$WIFI_INTERFACE" 2>&1)
        
        # Handle the case where Wi-Fi is not connected
        if [[ "$SSID" == *"You are not associated with an AirPort network."* ]]; then
            echo "$(date): Wi-Fi is on but not connected. Toggling Wi-Fi..."
            # Turn Wi-Fi off
            networksetup -setairportpower "$WIFI_INTERFACE" off
            sleep 5
            # Turn Wi-Fi back on
            networksetup -setairportpower "$WIFI_INTERFACE" on
        else
            # Extract and print the SSID
            CONNECTED_SSID=$(echo "$SSID" | awk -F': ' '{print $2}')
            echo "$(date): Wi-Fi is connected to network: $CONNECTED_SSID"
        fi
    else
        echo "$(date): Wi-Fi is off. No action needed."
    fi
}

# Main loop
while true; do
    toggle_wifi_if_needed
    sleep $INTERVAL
done
 
I've got a M1 Mac mini running latest Sequoia, every so often (and I have had a few broadband outages recently) that stops responding remotely. When I look at it WiFi is not connected. I have to manually reconnect.
 
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