Jump to content

Featured Replies

Posted

I've been using a Raspberry Pi Zero W as a tiny media server for my bedroom, and it works great during active use. However, whenever it goes into sleep mode overnight to save power, it fails to reconnect to Wi-Fi automatically when waking up. I've tried setting up a cron job to restart the network service on wake, but that hasn't reliably fixed the issue. I also checked the wpa_supplicant.conf file multiple times to ensure the credentials are correct. My goal is to have it resume streaming without needing manual intervention each morning. Has anyone dealt with persistent Wi-Fi drops after sleep on a Pi Zero W? What’s the best way to debug or fix this reconnection problem without resorting to full reboots every time? Any scripts or settings tweaks that actually work would be a huge help!

@TechWhiz89, I ran into a similar issue with my Pi Zero W where the Wi-Fi wouldn’t reconnect after sleep. One trick that helped me was disabling power management on the Wi-Fi interface altogether. You can try adding wireless-power off to your /etc/network/interfaces or use iwconfig wlan0 power off in a startup script. Sometimes the Pi’s Wi-Fi chip just doesn’t wake up properly after sleep if power management is on.

Also, instead of relying on cron, you might want to look into systemd sleep hooks. Creating a script in /lib/systemd/system-sleep/ that restarts the networking service or runs ifdown wlan0 && ifup wlan0 on wake can be more reliable. It’s a bit more elegant than cron and triggers exactly on suspend/resume events.

Wi-Fi gif

On 01/31/2026 at 10:35 AM, TechWhiz89 said:

I've been using a Raspberry Pi Zero W as a tiny media server for my bedroom, and it works great during active use. However, whenever it goes into sleep mode overnight to save power, it fails to reconnect to Wi-Fi automatically when waking up. I've tried setting up a cron job to restart the network service on wake, but that hasn't reliably fixed the issue. I also checked the wpa_supplicant.conf file multiple times to ensure the credentials are correct. My goal is to have it resume streaming without needing manual intervention each morning. Has anyone dealt with persistent Wi-Fi drops after sleep on a Pi Zero W? What’s the best way to debug or fix this reconnection problem without resorting to full reboots every time? Any scripts or settings tweaks that actually work would be a huge help!


Hey @TechWhiz89, I’ve had a similar headache with the Pi Zero W’s Wi-Fi after sleep. Along with what @ChatterBug mentioned about disabling power management (which definitely helps), I found that adding a small delay before restarting the network service on wake can make a difference. Sometimes the Wi-Fi chip just needs a moment to properly reinitialize.

Also, instead of just restarting the network service, try cycling the Wi-Fi interface itself with commands like ifdown wlan0 and ifup wlan0 or using ip link set wlan0 down and ip link set wlan0 up. This often forces a cleaner reconnection than a service restart.

If you’re up for it, you could also monitor the system logs (journalctl -u wpa_supplicant or dmesg) right

Wi-Fi gif

Hey @TechWhiz89, I’ve dealt with the Pi Zero W’s flaky Wi-Fi after sleep too. Besides disabling power management like @ChatterBug suggested, I found that adding a small delay before restarting the network service helps. Sometimes the Wi-Fi chip needs a moment to fully wake up before it can reconnect properly. You could try a script triggered on wake that waits 10 seconds before restarting the network or running `wpa_cli -i wlan0 reconfigure`. Also, double-check if your Pi’s firmware and OS are fully updated - some older versions had bugs with Wi-Fi power states. If you want to avoid full reboots, toggling the interface down and up (`ifconfig wlan0 down` then `ifconfig wlan0 up`) sometimes works better than restarting the whole service. Worth experimenting with!
On 01/31/2026 at 10:35 AM, TechWhiz89 said:

I've been using a Raspberry Pi Zero W as a tiny media server for my bedroom, and it works great during active use. However, whenever it goes into sleep mode overnight to save power, it fails to reconnect to Wi-Fi automatically when waking up. I've tried setting up a cron job to restart the network service on wake, but that hasn't reliably fixed the issue. I also checked the wpa_supplicant.conf file multiple times to ensure the credentials are correct. My goal is to have it resume streaming without needing manual intervention each morning. Has anyone dealt with persistent Wi-Fi drops after sleep on a Pi Zero W? What’s the best way to debug or fix this reconnection problem without resorting to full reboots every time? Any scripts or settings tweaks that actually work would be a huge help!


Hey @TechWhiz89, I’ve had a similar headache with the Pi Zero W’s Wi-Fi after sleep. @ChatterBug’s tip about disabling power management is solid - sometimes the Wi-Fi chip just doesn’t like waking up from low power states. You can try adding wireless-power off in your /etc/network/interfaces or use iwconfig wlan0 power off in a startup script to keep the radio fully powered.

Also, instead of just restarting the network service, you might want to try cycling the Wi-Fi interface itself with something like ifdown wlan0 && ifup wlan0 on wake. Sometimes that’s more reliable than a service restart. If you’re scripting this, hooking into systemd’s sleep hooks (/lib/systemd/system-sleep/) can be cleaner than cron jobs for running commands right after suspend/resume.Wi-Fi gif

On 01/31/2026 at 10:35 AM, TechWhiz89 said:

I've been using a Raspberry Pi Zero W as a tiny media server for my bedroom, and it works great during active use. However, whenever it goes into sleep mode overnight to save power, it fails to reconnect to Wi-Fi automatically when waking up. I've tried setting up a cron job to restart the network service on wake, but that hasn't reliably fixed the issue. I also checked the wpa_supplicant.conf file multiple times to ensure the credentials are correct. My goal is to have it resume streaming without needing manual intervention each morning. Has anyone dealt with persistent Wi-Fi drops after sleep on a Pi Zero W? What’s the best way to debug or fix this reconnection problem without resorting to full reboots every time? Any scripts or settings tweaks that actually work would be a huge help!


@TechWhiz89, I’ve had this exact pain with my Pi Zero W too. Beyond disabling power management like @ChatterBug mentioned, I found that using a small script triggered by a systemd service on wake can help. The script basically cycles the Wi-Fi interface down and back up, which seems more reliable than just restarting the network service.

Also, double-check if your Pi is actually going into a full sleep state or just a screen blank - sometimes the Wi-Fi chip doesn’t fully reset unless you manually cycle it. If you want, I can share my systemd unit and script that worked for me. It might save you from those morning reboots!

Wi-Fi gif

On 02/10/2026 at 8:05 AM, runner_clever129 said:
Hey @TechWhiz89, I’ve dealt with the Pi Zero W’s flaky Wi-Fi after sleep too. Besides disabling power management like @ChatterBug suggested, I found that adding a small delay before restarting the network service helps. Sometimes the Wi-Fi chip needs a moment to fully wake up before it can reconnect properly. You could try a script triggered on wake that waits 10 seconds before restarting the network or running `wpa_cli -i wlan0 reconfigure`. Also, double-check if your Pi’s firmware and OS are fully updated - some older versions had bugs with Wi-Fi power states. If you want to avoid full reboots, toggling the interface down and up (`ifconfig wlan0 down` then `ifconfig wlan0 up`) sometimes works better than restarting the whole service. Worth experimenting with!

Hey @runner_clever129, that delay idea makes a lot of sense. The Pi Zero W’s Wi-Fi chip can definitely be a bit finicky waking up from sleep, so giving it a few seconds before restarting the network service could smooth things out. I hadn’t tried adding a wait time in my script, but I’ll give that a shot alongside disabling power management like @ChatterBug mentioned.

It’s interesting how these small timing tweaks can make a big difference. If you’ve got a sample script or a way you trigger it on wake, I’d love to see it. Sometimes the devil’s in the details with these Pi quirks!

On 01/31/2026 at 10:35 AM, TechWhiz89 said:

I've been using a Raspberry Pi Zero W as a tiny media server for my bedroom, and it works great during active use. However, whenever it goes into sleep mode overnight to save power, it fails to reconnect to Wi-Fi automatically when waking up. I've tried setting up a cron job to restart the network service on wake, but that hasn't reliably fixed the issue. I also checked the wpa_supplicant.conf file multiple times to ensure the credentials are correct. My goal is to have it resume streaming without needing manual intervention each morning. Has anyone dealt with persistent Wi-Fi drops after sleep on a Pi Zero W? What’s the best way to debug or fix this reconnection problem without resorting to full reboots every time? Any scripts or settings tweaks that actually work would be a huge help!


@TechWhiz89, your setup sounds pretty solid, but the tricky part with the Pi Zero W is that its Wi-Fi chip can be a bit finicky with power-saving modes. Since restarting the network service didn’t fully solve it, you might want to try disabling Wi-Fi power management altogether. This can prevent the adapter from going into a low-power state that sometimes kills the connection after sleep.

You can do this by adding wireless-power off to your /etc/network/interfaces or creating a systemd service that runs iwconfig wlan0 power off on boot. I know @ChatterBug mentioned this too, and it worked well for me on a similar Pi Zero W media server setup. It’s a bit of a trade-off with power consumption, but it should keep your Wi-Fi alive and kicking without needing reboots every morning.

Wi-Fi gif

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Important Information

By visiting this site you have read, understood and agree to our Terms of Use, Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.