HP Smart Tank 5105
keeps disconnecting.
HP Smart Tank 5105 keeps disconnecting? A printer that connects and drops every few minutes is often losing its IP address, moving between Wi-Fi bands, or entering an aggressive sleep state. For this HP Smart Tank 5105, pay special attention to HP Smart, tank fill and vent checks, flatbed scanning, and queue recovery.
Try these in order.
Stop as soon as the printer behaves. Each step removes one likely cause without changing settings you may need later.
- 01
Move it closer for one test
Place the printer in the same room as the router and run three test pages. If the connection holds, placement or interference is the issue. On the HP Smart Tank 5105, use HP Smart or the printer control panel for this check.
- 02
Forget and rejoin Wi-Fi
Clear the saved network from the printer, restart both devices, and join the main 2.4 GHz network again.
- 03
Keep it awake during testing
Disable deep sleep temporarily while testing. A sleeping printer can look offline even when the Wi-Fi connection is healthy.
Usually one of these.
- HP Smart, tank fill and vent checks, flatbed scanning, and queue recovery is the model-specific checkpoint to verify first.
- The router is assigning a different IP address after each reconnect.
- Signal strength is weak where the printer is installed.
Move to the deeper fix.
Reserve its network address
Use the router connected-device list to reserve the printer current IP address, then re-add the printer using that address.
Separate printer traffic from guest Wi-Fi
Move the printer and computer to the primary home network. Guest and isolated IoT networks can intentionally block device-to-device traffic. Use the official HP support page for the exact HP Smart Tank 5105 package before changing firmware or resetting the device.
Before you reset everything.
Why does restarting the printer fix it temporarily?
Restarting forces a fresh Wi-Fi lease and clears the local connection. A DHCP reservation or stronger signal addresses the reason it drops again. On this model, start with HP Smart and the official support instructions.
Does a printer need to be on the same Wi-Fi as my laptop?
Yes, normally. Both devices need to be on networks that allow local device discovery and traffic between them.
Use the exact model guide.
These links point to the manufacturer support results for this model. Use the manual for panel symbols and the driver page for software or operating-system issues.