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Hi
I'm trying to connect my dev kit to WiFi using the WICED SDK wiced_network_up() function and the device gets the error 4
the function gets stuck trying to get an IP address. See stack trace below and configuration.
I know this takes quite some time first time to connect in the network that I'm testing (2.4 GHz). sometimes around 20 to 40 seconds
If I switch to the 5GHz channel the process is successful right away
Is there a way to configure the process to reattempt to get the IP several times or wait longer time before it throws the error?
thanks
Starting WICED Wiced_006.004.000.0061
Platform CYW943907AEVAL1F initialised
Started ThreadX v5.8
WICED_core Initialized
Initialising NetX_Duo v5.10_sp3
Creating Packet pools
WLAN MAC Address : C4:AC:59:98:AE:36
WLAN Firmware : wl0: May 2 2019 02:34:15 version 7.15.168.130 (r714231) FWID 01-7fc7cd46
WLAN CLM : API: 12.2 Data: 9.10.74 Compiler: 1.31.3 ClmImport: 1.36.3 Creation: 2019-05-02 02:29:29
Joining : mynetwork
Failed to join : mynetwork
Joining : mynetwork
Successfully joined : mynetwork
Obtaining IPv4 address via DHCP
L1420 : dhcp_client_init() : DHCP CLIENT hostname = [WICED IP]
Unable to obtain IP address via DHCP
/* This is the default AP the device will connect to (as a client)*/
#define CLIENT_AP_SSID "mynetwork"
#define CLIENT_AP_PASSPHRASE "mynetworkpass"
#define CLIENT_AP_BSS_TYPE WICED_BSS_TYPE_INFRASTRUCTURE
#define CLIENT_AP_SECURITY WICED_SECURITY_WPA2_MIXED_PSK
#define CLIENT_AP_CHANNEL 1
#define CLIENT_AP_BAND WICED_802_11_BAND_2_4GHZ
Solved! Go to Solution.
- Labels:
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ispn:38946:1:0
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l1:314:1:0
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I guess it is a problem with my router and how flaky is my 2.4 wifi channel.
thanks for your answer
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Hi,
Can you share your code example or provide us with the pointers to reproduce the issue? Why is it that initially it takes around 20 to 40 seconds to connect to your network? Does that happen every time or only at the initial stage?
Thanks
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I have no idea why the first time it takes several seconds to join a 2.4Ghz network. Maybe it is my router. But once it is done the first time, then when I reset the dev kit it will join faster.
Below is the only code I'm executing
void application_start( ) {
wiced_result_t ret = WICED_SUCCESS;
ret = wiced_network_up( WICED_AWS_DEFAULT_INTERFACE, WICED_USE_EXTERNAL_DHCP_SERVER, NULL );
if ( ret != WICED_SUCCESS )
{
WPRINT_APP_INFO( ( " Not able to join the requested AP\n\n" ) );
return;
}
}
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Hello,
I tried to use the same code to see if I am able to join the requested AP and obtain the IP address. Below is the snapshot attached and my device can resolve the IP address.
I see in your previous response that you provided the details of the default AP that the device will connect to
/* This is the default AP the device will connect to (as a client)*/
#define CLIENT_AP_SSID "mynetwork"
#define CLIENT_AP_PASSPHRASE "mynetworkpass"
#define CLIENT_AP_BSS_TYPE WICED_BSS_TYPE_INFRASTRUCTURE
#define CLIENT_AP_SECURITY WICED_SECURITY_WPA2_MIXED_PSK
#define CLIENT_AP_CHANNEL 1
#define CLIENT_AP_BAND WICED_802_11_BAND_2_4GHZ
Have you added this in your main application? Or changed the SSID and PASSPHRASE in the wifi_config_dct.h? Did you used the "default wifi_config_dct.h" file in the "include" folder in WICED or added it to the application folder?
Did you face the same problem with other APs as well? Did you trying changing the AP?
Thanks
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I guess it is a problem with my router and how flaky is my 2.4 wifi channel.
thanks for your answer
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Dear PaMu
Maybe help you, a try for day, to have an ip from a router, with dhcp, with a random success.
I found that the first 3 byte on the mac, must be listed in the router, registered from IEEE.
The other is your mac dependind , for the board.
If the first isn't listed, no answer from router.
Example
// 3 bytes Address Cypress Semiconductor from IEEE registered list
ETH_uniqueId[0] = 0x00 ;
ETH_uniqueId[1] = 0xa0 ;
ETH_uniqueId[2] = 0x50 ;
// 3 bytes my mac from psoc5lp micro ID
ETH_uniqueId[3] |= CY_GET_XTND_REG8((void CYFAR *) (CYREG_FLSHID_CUST_TABLES_WAFER_NUM ));
ETH_uniqueId[4] = CY_GET_XTND_REG8((void CYFAR *) (CYREG_FLSHID_CUST_TABLES_X_LOC));
ETH_uniqueId[5] = CY_GET_XTND_REG8((void CYFAR *) (CYREG_FLSHID_CUST_TABLES_Y_LOC)) ;
After this, work like a candy
Best Regards
CocoritoCocorito