Mi Air Purifier - Troubleshoot

Cannot Connect the Phone to Air Purifier - Troubleshoot

A number of users' feedback had reported that they cannot connect the Mi air purifier to the network, making them unable to control the Air Purifier using the smartphone or could not bind the mobile APP Mijia with the Air purifier, and other issues.We will troubleshoot such problems from 3 major sources, the phone, the network (router end) and the air purifier.

Note - Please choose "China" as connection region in the App settings.

a) The Phone

i) Check to see if the phone is connected to your Home / Office network

ii) Check to see if certain privileges may be disable for the "Mi Home" or Mijia APP on your phone settings;

b) The Network (Router End)

i) While Mi air purifier supports most routers, but it only supports 2.4GHz WiFi, not 5GHz;

ii) The WiFi encryption must be WPA or WPA2 (without encryption can also be connected, but not recommended for security reasons), it does not support WEP and EAP 802.1x authentication;

iii) Failure to support the needs of the page authenticated network, for example: CMCC, ChinaUnicom other public networks;

iv) Some routers may not be able to connected, so far identified router models are : TP-LINK WDR6300 (unless set up to use only 802.11b), TP-LINK WR880N (shutting down WMM may resolves);

v) Routers with advanced features set-up. like hidden SSID, disabled QOS, non DHCP settings where you need to set a static IP manually, or the router settings that requires MAC address binding may all result in not able to connect the Air Purifier to the network;

vi) Close all router wireless control for blacklists;

vii) The company intranet which had disabled port 80 or UDP may lead to not work properly with the air purifier;

viii) Does not work if you are connecting to portable USB routers;

c) The Air Purifier

Air Purifier may had been configured previously to connect to another network, or is currently connected to other network, please reset the Air Purifier WiFi settings by pressing the "Operating Mode Choice" and "Switching of Indicator" button simultaneously and hold them for 5 seconds. After you hear the beeps sound, WiFi settings is reset.

Other Commonly encountered problems

Problem 1
Mijia App displayed error message when trying to connect to the Air purifier
"No available WiFi, please check if appropriate permissions had been restricted

Resolution 1

Under phone's settings, enter the "Security Center" >> "Authorization Management" >> "Application Rights Management", open the "smart home" network-related rights, and locate permission. (Note: settings may be slightly different with different OS and model of phones)

Problem 2
Mijia APP showing "Network connection is unavailable" message, as shown in picture

Resolution 2
Open the phone's WiFi or data network and then try and make sure the network, or other similar software does not disable the "Mijia" APP network connection.

Problem 3
When Mijia app trying to connect to air purifier, APP showing  "Connection Failed" and the purifier cannot be bind, WiFi status indicator is flashing slowly.

Resolution 3
a) when connecting to WiFi, make sure password entered is correct;

b) Whether router is connected to Internet;

c) Whether routers is using a WEP or EAP 802.1x encryption, as they are not supported, please replace with WPA / WPA2 authentication and try again;

d) Currently does not support the EAP 802.1x authentication network or public WiFi network that requires web authentication on landing page;

e) Whether router is configured with hidden SSID, disabled DHCP and requires a manually assigned static IP, MAC address binding and other advanced features, making it impossible to connect, try to turn on / off the relevant function and try again;

f) whether the router is connected to a device that may had slowed down the network or router, try to restart the router and try again;g) Some of the routers may not be supported, such as: TP-LINK WDR6300 (try setting up using only 802.11b), TP-LINK WR880N (disable WMM may resolve problem), wait for a new version of the Mi Home APP and try again after the app update, you  may need to try other routers temporarily in order to use the air purifier;

g) If all of the above still cannot solve the problem, try doing a factory reset of the Air Purifer by pressing the "Operating Mode Choice" and "Switching of Indicator" button simultaneously and hold them for 5 seconds. After you hear the beeps sound, WiFi settings is reset.

Problem 4
Under the Mi Home APP, the purifier is show "offline", but the WiFi indicator on air purifier is flashing quickly

Resolution 4
a) Whether the router that the purifier is connected is working properly, OR whether the SSID connection password had been modified; 

b) Try to reset the purifier WiFi module (see step 3h above), and try to re-connect the App to the air purifier again, 

Problem 5
Under the Mi Home APP, the purifier is show "offline", but the WiFi indicator on air purifier is always on

Resolution 5
a) Check the phone network is normal, whether you can connect to the network;

b) The network where the air purifier and hand phone connected is working properly;

c) Whether the router had blocked port 80 or disabled UDP;

d) Try to reset the purifier WiFi module (see step 3h above), and try to re-connect the App to the air purifier again, 


3. The different WiFi indicator for air purifier
a) Slow flashing (approximately flashing once every 0.8 seconds): Purifier had never been connected to the router,

b) Flashing quickly (approximately flashing every 0.2 seconds): The air purifier is binded to the Mi Home app, the air purifier is in the process of connecting to a corresponding network, if the network has a fault, the quick flashing will remain; 

c) Steady : purifier is connected to a network.


Xiaomi Air Purifier demo and setting up