Brother HL-4040CN - Network Problems

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6. NETWORK PROBLEMS
User Check
- Check the descriptions in the network user’s guide.
- Try resetting the factory settings.
Step Cause
Check Result Remedy
1
Wireless LAN
PCB failure
(HL-4070CDW)
Is the problem solved
after replacing the
wireless LAN PCB
ASSY?
Yes Replace the wireless
LAN PCB ASSY.
2
Main PCB failure Is the problem solved
after replacing the main
PCB ASSY?
Yes Replace the main PCB
ASSY.