B4R Question rESP8266WiFi connect fail times and error message

[RJB]

I've been having problems with rESP8266WiFi so have done some testing as follows. The timeout periods seem to be excessive and there is an error message on retry. I can't find any way to reduce the timeout or to avoid the error message.

Test Code (modified 'blank' esp code):

Sub Process_Globals
    Public Serial1 As Serial
    Private wifi As ESP8266WiFi
    Dim ConnectStart As ULong
    Dim count As Int
End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    Log("AppStart")
    'example of connecting to a local network
    connectloop(0)

End Sub

Sub connectloop(loopcount As Byte)
    'non-blocking delay - doesn't seem to help with error message
    If loopcount > 4 Then Return
    Log("Connect: ", loopcount)
    Connect
    CallSubPlus("connectloop", 10000, loopcount + 1)
    
End Sub
    
Sub Connect
    ConnectStart = Millis
'    wifi.ConnectAsync("SSID", "Password", 0, Null, "wifi_Connected")
    If wifi.Connect2("SSID", "Password") Then
        Log("Connected to network after ", (Millis - ConnectStart), " Millis")
    Else
        Log("Failed to connect to network after", (Millis - ConnectStart), " Millis")
        'wifi.Disconnect 'doesn't make any difference
    End If
End Sub

Sub wifi_Connected(Success As Boolean)
    If Success Then
        Log("Async success after ", (Millis - ConnectStart), " Millis")
    Else
        Log("Async failed after ", (Millis - ConnectStart), " Millis")
    End If

End Sub

Results:
Sync
----
SSID and Password correct: connection between 600 and 1500 mS
SSID incorrect: failed at about 15000 mS
Password incorrect: failed at 75000 mS, i.e. 75 seconds!
Both incorrect: failed at about 15000 mS

15 seconds/ 75 seconds seem unnecessarily long!

Ansync
------
SSID and Password correct: connection at about 150 mS
SSID incorrect: failed at about 2500 mS
Password incorrect: failed at between 450000 mS and 900000 mS, i.e. up to 15 minutes!!
Both incorrect: failed at about 2500 mS

7.5/ 15minutes is just unbelievable !

Error message on each retry: "E (107629) wifi:sta is connecting, return error" , the number increases by 25000 (i.e. must be a 'millis' value, 25 Seconds, 15 S to fail + 10 S waiting for retry) each time:

AppStart
Connect: 0
Failed to connect to network after15098 Millis
Connect: 1
E (32611) wifi:sta is connecting, return error
Failed to connect to network after15001 Millis
Connect: 2
E (57617) wifi:sta is connecting, return error
Failed to connect to network after15001 Millis
Connect: 3
E (82623) wifi:sta is connecting, return error
Failed to connect to network after15001 Millis
Connect: 4
E (107629) wifi:sta is connecting, return error
Failed to connect to network after15001 Millis

Any suggestions? Am I doing something wrong?

 

[peacemaker]

rESP8266WiFi

Check the source code of rESP8266WiFi.cpp lib: https://github.com/AnywhereSoftware/rESP8266WiFi/blob/master/rESP8266WiFi.cpp

Including:

    void B4RESPWiFi::ConnectAsync(B4RString* SSID, B4RString* Password, Long Channel, ArrayByte* bssid, SubVoidBool ConnectedSub) {
        this->connected = ConnectedSub;
        FunctionUnion fu;
        fu.PollerFunction = checkForConnected;
        pnode.functionUnion = fu;
        pnode.tag = this;
        if (pnode.next == NULL) {
            pollers.add(&pnode);
        }
        WiFi.begin(SSID->data, (Password != NULL && Password->getLength() > 0)? Password->data : NULL, Channel,
            bssid != NULL ? (uint8_t*)bssid->data : NULL, true);
    }
    
    //static
    void B4RESPWiFi::checkForConnected(void* b) {
        B4RESPWiFi* me = (B4RESPWiFi*) b;
        delay(1);
        if (WiFi.status() != WL_IDLE_STATUS && WiFi.status() != WL_DISCONNECTED &&  WiFi.status() != WL_CONNECTION_LOST &&  WiFi.status() != WL_NO_SSID_AVAIL) {
            me->connected(WiFi.status() == WL_CONNECTED);
            pollers.remove(&me->pnode);
        }
    }

 

[RJB]

Thanks for the suggestion but I'm afraid it means absolutely nothing to me! I use B4R to avoid having to get into that sort of detail.
I don't see anything about a timeout period or the error message, but as I say I don't understand a word of it!

 

[peacemaker]

If you need to adjust some code - you have to adjust the source code.
The source code is C++ code using Arduino libraries, where all these timeouts are defined.

Also found: https://www.b4x.com/android/forum/threads/wifi-connect-timeout-value.137276/

 

[RJB]

Thanks.
I hadn't seem that thread. It explains some things (e.g. 15/ 75 seconds) and gives me some ideas to experiment with.
The problem with changing the code in someone else's source/ libraries is that the changes will be lost when they make updates, won't they?
My current problem is with the non-async (blocking) code so I'll experiment some more.
Thanks for your help

 

[peacemaker]

Do not forget to publish any useful experiment results and tested code example...

 

[RJB]

Of course!

Adding the 'RunNative("StopAutoReconnect",Null)' gets ride of the error message.
I can't experiment with 'RunNative("StopAutoConnect",Null)' as apparently "class WiFiClass' has no member named 'setAutoConnect';"

Changing 'return WiFi.waitForConnectResult() == WL_CONNECTED;' to 'return WiFi.status() == WL_CONNECTED;' in rESP8266WiFi.cpp reduces the fail time from 75 seconds to 15 seconds which is usable - but I don't know if that breaks anything else and it will obviously get lost on update/ installation on another pc. Perhaps Erel could help with that?

The only change to the test code is the addition of the 'RunNative("StopAutoReconnect",Null)' after 'Log("AppStart")' plus the c code at the end:

#if C
  void SetSTA(B4R::Object* o) {
  WiFi.mode(WIFI_STA);
  }
  void EnAutoReconnect(B4R::Object* o) {
  WiFi.setAutoReconnect(true);
  }
  void StopAutoReconnect(B4R::Object* o) {
  WiFi.setAutoReconnect(false);
  }
  void EnAutoConnect(B4R::Object* o) {
//  WiFi.setAutoConnect(true);
  }
  void StopAutoConnect(B4R::Object* o) {
 // WiFi.setAutoConnect(false);
  }
  void EnPersistent(B4R::Object* o) {
  WiFi.persistent(true);
  }
  void StopPersistent(B4R::Object* o) {
  WiFi.persistent(false);
  }
#end if