- Restart the air purifier: unplug the unit, wait 30 seconds, then plug it back in and wait for it to fully reboot.
- Restart your router: power-cycle your Wi‑Fi router (unplug 30 seconds, plug back in) and wait until it restores internet.
- Ensure the purifier is in Wi‑Fi setup mode and re-run the AEG app pairing process (follow on-screen prompts to reconnect).
- Move the purifier and phone closer to the router while pairing to avoid weak-signal issues.
A flashing Wi-Fi symbol indicates the purifier cannot connect to the Wi-Fi network.
- Wi‑Fi indicator on the purifier flashes continuously and the unit appears offline in the AEG app.
- App shows 'device unavailable' or fails during setup/connection attempts.
- Temporary router or internet outage preventing device registration.
- Wi‑Fi network is 5 GHz only or uses settings unsupported by the purifier (the purifier typically requires a 2.4 GHz network).
- Incorrect Wi‑Fi password or app pairing interrupted.
- Device is out of range or signal is obstructed.
- Confirm your network band: check your router settings and verify a 2.4 GHz network is enabled. If your router uses separate SSIDs for 2.4 GHz and 5 GHz, connect the purifier to the 2.4 GHz SSID.
- Check Wi‑Fi password and router security: ensure WPA2 (or compatible) encryption is used and re-enter the correct password in the AEG app during setup.
- Temporarily disable advanced router features: turn off MAC filtering, client isolation/AP isolation, and any firewall rules that might block device-to-internet or device-to-app traffic while pairing.
- Factory-reset network settings on the purifier and retry setup: follow the user manual steps to clear previous Wi‑Fi settings before re-pairing (refer to the manual if unsure).
| Router band (2.4 GHz vs 5 GHz) | Verify 2.4 GHz is active and the purifier is joining that SSID. | Purifier can only connect if 2.4 GHz is available; enabling it solves many issues. |
| Signal strength | Move purifier and phone closer to the router or remove obstructions. | Improved signal helps pairing and stabilizes the connection. |
| App status | Ensure the AEG app is on the latest version and phone permissions (location/Wi‑Fi) are granted. | App can discover and pair with the purifier during setup. |
- Trying to connect to a 5 GHz network instead of 2.4 GHz.
- Entering the wrong Wi‑Fi password or copying the password from a different network.
- Running setup too far from the router or with heavy interference from other devices.
- Do not repeatedly factory-reset the unit without checking router and app settings first.
- Do not change advanced router firmware/settings mid-troubleshoot without understanding the impact (seek help if unsure).
- Unplug the unit before inspecting or moving internal parts — do not open the purifier casing.
- Do not use the purifier in an environment where liquids or excessive moisture can reach the controls when troubleshooting connectivity.
Contact AEG support if The Air Purifier Wi-Fi symbol is flashing, cannot connect to the Wi-Fi network returns after the checks above or if the purifier shows other fault symptoms while this issue is present.
- Keep router firmware up to date and maintain a stable internet connection.
- Use a stable 2.4 GHz SSID for smart home devices and avoid frequent SSID or password changes.
- Position the purifier within reliable signal range of the router and avoid placing it near large metal objects or microwaves.
Does the purifier require 2.4 GHz Wi-Fi during onboarding?
Should I factory reset the purifier immediately?
- https://support.aeg.co.uk/support-articles/article/the-air-purifier-wi-fi-symbol-is-flashing-cannot-connect-to-the-wi-fi-network
- https://shop.aeg.com.es/model/m/AX71-304DG
- https://emtech.delta.electrolux.com/license
- https://www.aeg.de/siteassets/regional-assets/emea/germany/09.-support/download-brochures/wendebroschuere_luftreiniger_2021_210622.pdf
- https://www.aeg.com.es/aspiradoras/air-comfort/air-purifiers/oxygen-air-purifier/ax71-304dg/
- https://support.aeg.co.uk/support-articles/article/the-app-shows-my-air-purifier-as-unavailable
- https://www.aeg.com.es/aspiradoras/air-comfort/air-purifiers/oxygen-air-purifier/ax51-304wt/
- https://shop.aeg.com.es/model/m/AX71-304GY