Brother HL series won’t wake up from sleep — reliable wake fixes (HL-L2350DW/HL-L2395DW/HL-L3270CDW)

Joe B.

Expert ★★★★★ 27,853 satisfied customers

Specialities: macOS/Windows printing, Brother HL, Wi-Fi networks, Router/QoS, Office Equipment

How to fix “Brother HL won’t wake up” / “Deep Sleep won’t print” — Wi-Fi, Ethernet, USB

Technician

Hey! Let’s get your Brother HL waking up reliably. To tailor the fix, tell me:
• Exact model (HL-L2350DW, HL-L2390DW, HL-L2395DW, HL-L3270CDW, etc).
• Connection type — Wi-Fi 2.4GHz, Ethernet, or USB?
• Computer & driver path — Windows WSD/RAW 9100 port, or macOS AirPrint/IPP?
• What you see on the device panel: Sleep, Deep Sleep, or screen blank?
With this, we’ll fix wake-on-print, Deep Sleep timeouts, and Wi-Fi power save so jobs don’t stall.

Customer

HL-L2350DW on Wi-Fi (2.4GHz). Windows 11 laptop. When it goes to sleep, print jobs stay in queue until I switch the printer off/on. Printer shows “Deep Sleep”.

Technician

Got it. On Brother HL, won’t wake from Deep Sleep usually comes from one or more of these:
• WSD (Web Services for Devices) port timing out in sleep; RAW TCP 9100 or LPD wakes the unit faster.
• Router puts the printer’s Wi-Fi into power-save / ARP cache timeout; no traffic reaches the printer until reboot.
• No DHCP reservation: IP changes → Windows keeps targeting the old address.
• Old firmware or IPv6 enabled causing wake/ARP conflicts.
• Auto Power Off too aggressive or Sleep Time set too low. We’ll switch the port, lock the IP, then tune Sleep/Deep Sleep and Wi-Fi.

Customer

What’s the fastest fix to try first so the Brother wakes when I hit Print?

Technician

5-minute “won’t wake” fix (Windows + Wi-Fi):
1) In your router, set a DHCP reservation/static IP for the printer (e.g., 192.168.1.45).
2) Windows → Control Panel → Devices and Printers → Right-click your HL → Printer Properties → Ports → Add Port… → Standard TCP/IP Port → enter the printer’s IP → Raw 9100. Uncheck any WSD entries.
3) Open the printer’s Embedded Web Server (type its IP in a browser) → Network: turn IPv6 Off; ensure Wireless is connected to 2.4GHz (not 5GHz) and power save is Standard/Off where available.
4) Firmware Update via Web Admin or Brother iPrint&Scan (PC).
5) On the device panel: Menu → General Setup → Ecology → set Sleep Time 5–10min, Auto Power Off: Off or longer. Print a test page and see if it wakes instantly.

Customer

Nice, RAW 9100 helped. What about macOS? My partner’s Mac also can’t wake it sometimes.

Technician

macOS wake fixes (AirPrint/IPP):
• System Settings → Printers & Scanners → remove old queues → Add Printer again using AirPrint / IPP (not HP/Generic PCL). IPP sends keep-alive that wakes HL faster.
• If Bonjour discovery is flaky, add by IP → Protocol: IPP, Use: AirPrint → works great with sleep.
• Keep the printer on a reserved IP. If color models (e.g., HL-L3270CDW) still hesitate, toggle IPv6 Off and set Sleep Time to 10 min.

Customer

Sometimes the LCD is blank and the Wi-Fi light flickers. Jobs say “Printing” then disappear with nothing out. Is that Deep Sleep too?

Technician

Yes — Deep Sleep + Wi-Fi power save can drop packets. Do this:
• On the printer: Menu → General Setup → Ecology → set Sleep Time 10 min; Auto Power Off: Off or 4 hours.
• Menu → Network → WLAN → TCP/IP: IPv6 Off; confirm correct SSID (2.4GHz), and channel width 20MHz on the router.
• Router: disable AP isolation, allow Multicast/Broadcast for Bonjour/AirPrint; optionally bind the MAC address to the reserved IP.
• If interference persists, try Ethernet (fast wake) or move to a cleaner 2.4GHz channel (1/6/11).

Customer

What about USB? A friend’s HL over USB won’t wake unless they press the power button.

Technician

USB wake: use a short, high-quality USB 2.0 cable (< 2m) directly to the PC (no hubs). In Windows Device Manager, under Universal Serial Bus controllers, uncheck Allow the computer to turn off this device to save power for USB Root Hubs. Install the latest Brother Full Driver & Software Package; set Sleep Time to 10 min.

Customer

Sometimes it wakes but prints only after 1–2 minutes. Port already set to RAW 9100. Any other tweaks?

Technician

Two things speed wake:
• In Printer Properties → Advanced: enable Print directly to the printer (bypasses long spooling) or keep Spool but Start printing immediately.
• In Ports → Configure Port: uncheck SNMP Status if your router blocks it — stops needless retries during Deep Sleep. Also test LPD protocol if RAW is slow in your environment.

Customer

Great, wake is instant now. Anything else to keep it reliable long-term?

Technician

Best practices:
• Keep a DHCP reservation for the HL.
• Leave IPv6 Off unless you specifically need it.
• Update firmware quarterly via the web panel or iPrint&Scan.
• Use one active queue per OS (avoid duplicates/WSD ghost ports).
• Stick to 2.4GHz Wi-Fi for HL models that don’t support 5GHz.

Customer

If I share the printer, can other PCs wake it?

Technician

Yes — but share via the networked queue, not a USB-shared Windows host. Each PC/Mac should add the HL using the printer’s IP (RAW 9100 on Windows, IPP/AirPrint on macOS). That way the printer wakes directly on incoming traffic.

Customer

Perfect — my Brother HL wakes instantly now, no more power cycling. Thanks!

Technician

Summary: For Brother HL won’t wake from sleep/Deep Sleep: lock a static IP, switch Windows to RAW 9100 (drop WSD), add macOS via IPP/AirPrint, disable IPv6, update firmware, and set practical Sleep Time. Need help tuning your router/ports? Open the chat — I’ll walk you through it live.

Quick answer: the accepted fix

Accepted fix for Brother HL won’t wake from sleep: reserve a static/DHCP IP, use RAW TCP 9100 (Windows) or IPP/AirPrint (macOS), disable IPv6, update firmware, and set Sleep Time 5–10min with Auto Power Off extended. This resolves most Deep Sleep won’t print and wake-on-print issues.

FAQ

Step-by-step (Windows 10/11)

1. Reserve a static IP for the HL in your router (copy MAC from the printer’s network report).
2. Control Panel → Devices and Printers → Printer Properties → Ports → Add Port → Standard TCP/IP Port → IP of printer → Raw 9100. Uncheck WSD ports.
3. Ports → Configure Port → uncheck SNMP Status.
4. On the printer: Menu → General Setup → Ecology → Sleep 5–10 min; Auto Power Off extended.

Step-by-step (macOS Ventura/Monterey/Sonoma)

1. System Settings → Printers & Scanners → remove old queues.
2. Add Printer → IP tab → address = printer’s reserved IP → Protocol: IPP → Use: AirPrint.
3. Printer web page → Network → TCP/IP: set IPv6 Off; confirm Wi-Fi 2.4GHz.

Sources

• Brother — Drivers, Firmware & Manuals
• Apple — Add a printer to your printer list
• Microsoft — Standard TCP/IP Port printing

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