Symptoms
- Printer doesn't appear in the add-printer list
- 'Printer not found' error during setup
- Printer was working, then disappeared from the list
- Only wireless printing fails, USB works fine
Likely causes
- CommonComputer and printer are on different Wi-Fi networksThis commonly happens with dual-band routers where devices join the 2.4GHz or 5GHz band separately.
- CommonPrinter disconnected from Wi-FiPrinters can drop their saved Wi-Fi connection after a power outage or router change.
- PossibleRouter assigned the printer a new network addressWithout a fixed address, the printer's location can change and confuse cached settings.
- PossibleFirewall blocking printer discoverySecurity software can block the network discovery protocol printers use.
What to do
- Print a network status page from the printer's own menu to confirm it's connected to Wi-Fi and note its network name.
- Confirm your computer is joined to that same Wi-Fi network name.
- Restart the printer and the router.
- Remove the printer from your computer's printer list and add it again, letting the system rediscover it.
- Check your firewall or antivirus isn't blocking network discovery, temporarily disabling it to test.
- Set a static or reserved IP address for the printer in your router settings to prevent future disconnects.
When to call a pro
For persistent network printer issues in an office setting, a network technician can set up more reliable static addressing.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.