Cannot Establish Wi-Fi Connection [10/2018 - 10/2019]: Procedure

1. Check that the following "Wi-Fi" connection setting conditions are met.
   • "Wi-Fi" connection setting is turned on
   • Communication setting is set to "Wi-Fi"

   Result

   Proceed to
   OK
   NG

Result: 

NG 

PERFORM WI-FI SETTING AGAIN 

Result: 

OK 

See step  2

1. Check the conditions and procedure for establishing a "Wi-Fi" connection, and perform "Wi-Fi" connection again.

   HINT: 

   • As there may be wave interference, disconnect other "Wi-Fi" compatible devices (Miracast compatible devices) or "Bluetooth" compatible devices before establishing a "Wi-Fi" connection.
   • A "Wi-Fi" connection can be established manually or automatically.
   • There are 3 ways to establish a manual connection: Connecting using simple setting, connecting by searching for a "Wi-Fi" access point and inputting a password, and connecting by inputting an SSID and password.
   • Even though an automatic connection is enabled, a connection can be established only when a "Wi-Fi" access point with the same SSID and password that were used for a previous connection exists.
   • It may not be possible to establish a "Wi-Fi" connection in a region other than the region where the vehicle was purchased.

   Result

   Result	Proceed to
   "Wi-Fi" connection can be established.	A
   "Wi-Fi" connection cannot be established.	B

Result: 

A 

END 

Result: 

B 

See step  3

1. Bring a portable device to be used to establish a "Wi-Fi" connection into the cabin and perform "Wi-Fi" connection again near the in-vehicle device.

   HINT: 

   • Considering the radio wave environment around the vehicle, move the vehicle and establish a "Wi-Fi" connection.
   • Depending on the portable device, operation by the customer (Internet sharing, tethering settings, etc.) may be required each time a "Wi-Fi" connection is established.

   Result

   Result	Proceed to
   "Wi-Fi" connection can be established.	A
   "Wi-Fi" connection cannot be established.	B

Result: 

A 

END 

Result: 

B 

See step  4

1. Check that the Techstream can be used in the working environment.

   Result

   Result	Proceed to
   The Techstream can be used in the working environment.	A
   The Techstream cannot be used in the working environment.	B

Result: 

B 

See step  7

Result: 

A 

See step  5

1. Check for wave interference while a "Wi-Fi" connection is established.
   1. Using the Techstream and USB memory device, check "Wi-Fi" Connection History" and proceed to the following step.

      Refer to OPERATION CHECK [10/2018 - 10/2019]

   Result

   Result	Proceed to
   "Received Signal Strength" is "-71 dBm" or less.	A
   "Data Rate" is "10 Mbps" or less.
   None of the above.	B

Result: 

A 

ESTABLISH "Wi-Fi" CONNECTION IN AREA WITH LITTLE WAVE INTERFERENCE 

Result: 

B 

See step  6

1. Determine the cause of "Wi-Fi" connection failure.
   1. Using the Techstream and USB memory device, check "Wi-Fi" Connection History and proceed to the following step.

      Refer to OPERATION CHECK [10/2018 - 10/2019]

   Result

   Result	Cause	Proceed to
   "Timeout" and "AP Connection Error (WPS)" are displayed.	Portable device was not operated.	A
   "Authentication Failure" and "AP Connection Error" are displayed.	Wrong password was input on a portable device.
   "Authentication Failure" and "AP Connection Error (WPS)" are displayed.
   "Communication Error" and "AP Connection Error" are displayed.	"Wi-Fi" connection failed as there were no corresponding portable devices near the vehicle due to a wrong SSID being input.
   "Communication Error" and "AP Connection Error (WPS)" are displayed.	"Wi-Fi" connection failed as there were no corresponding portable devices near the vehicle.
   "Timeout" and "AP Connection Error" are displayed.	There was no response as the portable device was turned off.	B
   "Communication Error" and "AP Connection Error" are displayed.	"Wi-Fi" connection failed as the portable device was turned off after searching for a "Wi-Fi" access point near the vehicle.
   "Communication Error" and "AP Connection Error (WPS)" are displayed.
   Any of the "Result" column items and "DHCP Connection Error" are displayed.	Although a "Wi-Fi" connection has been established, there is a malfunction in a "Wi- Fi" compatible function.	C
   Any of the "Result" column items and "DNS Connection Error" are displayed.
   Any of the "Result" column items and "HTTP Connection Error" are displayed.
   Any of the "Result" column items and "Other Error" are displayed.
   "Other Failure" and "AP Connection Error" are displayed.	An error other than above occurred.	D
   "Other Failure" and "AP Connection Error (WPS)" are displayed.

Result: 

A 

CHECK OPERATION OF PORTABLE DEVICE 

Result: 

B 

RECHARGE PORTABLE DEVICE 

Result: 

C 

REFER TO PROCEDURE FOR FUNCTIONS THAT USE "Wi-Fi" CONNECTION 

Result: 

D 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2018 - 10/2019] 

1. Check the condition of portable device.

   HINT: 

   • The head unit may not be able to connect to the access point due to the condition of the portable device (e.g., the power may not be turned on, tethering may be turned off, or the SSID (name of access point) may not be sent).
   • When the power of the portable device is turned off, tethering may be turned off.

   Result

   Result	Proceed to
   The power is off or tethering is turned off (access point).	A
   Other than above.	B

Result: 

A 

RESTART ACCESS POINT 

Result: 

B 

See step  8

1. Check if the "Wi-Fi" access point is discovered on a manual search.

   Result

   Result	Proceed to
   There are no search results and SSID is not sent (access point).	A
   The device is detected via a network search.	B

Result: 

A 

FOLLOW SETTING METHOD FOR EACH PORTABLE DEVICE IN ORDER TO SET ACCESS POINT TO BROADCAST SSID 

Result: 

B 

See step  9

1. Change the location to another place and perform "Wi-Fi" connection.
   NOTE:

   Bring the portable device close to the display of the system device.

   Result

   Result	Proceed to
   "Wi-Fi" connection can be established.	A
   Function cannot be stabilized.	B
   Even though setting is performed, "Wi-Fi" connection cannot be established.	C

Result: 

A 

END 

Result: 

B 

FUNCTION THAT USES "Wi-Fi" IS MALFUNCTIONING 

Result: 

C 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2018 - 10/2019]