Start with evidence
Run the tests that separate the likely branches
Network Information CheckRead browser-exposed connection type, estimated round-trip time, downlink, Save-Data state, and online status where supported.
Run →Browser Network Timing Variation CheckRun repeated HTTP round trips to DeviceOK and show timing variation between samples.
Run →Printer Small Text Test PagePrint small text at several sizes to inspect sharpness, edge quality, smearing, and readability.
Run →Decision table
What the observation changes
ObservationWhat it meansNext action
Printer works over Ethernet but not Wi-FiPrint engine is functioning; Wi-Fi/router path is higher priority.Check SSID/IP/router isolation rather than printer mechanics.
Network status is valid but one computer says offlineHost print queue/port mapping is more likely.Refresh the printer/port on that computer.
No network method reaches printerPrinter network configuration or router path is broader.Check printer network status and reconnect using Epson guidance.
Sequence
Work from reversible checks to escalation
- 01
Confirm whether printer is using Wi-Fi or Ethernet.
- 02
Check printer's current network status/IP.
- 03
Compare another device/connection path.
- 04
Only then rebuild the affected host print queue.
Likely areas
Keep these branches separate
Wrong Wi-Fi/networkChanged printer IPEthernet vs Wi-Fi pathOS print queue/driverRouter isolation
Repair boundary
When to stop changing settings
If the printer cannot establish either documented network path after reset/reconfiguration, use Epson support or inspect router configuration.