Hardware problem with ESP8266 RF with my prototype

[williamesp2015]

Basic Infos

Hardware

Hardware: Custom ESP8266 Design with 32Mbit Flash, 5.6 pf capacitor connected to PCB Antenna
Core Version: 3.2.1

Problem description
I have problem with wifi connection and I was thinking I have problem with Antenna so I bypassed it to an external Antenna but same problem. I changed 5.6 pf capacitor but no progress. If I flash it with SoftAP or WifiScan, can not detect network. How can check ESP8266 RF section or is there any other pin related to it except Pin31?

Settings in IDE

Module: Generic ESP8266 Module?
Flash Size: 4MB
CPU Frequency: 80Mhz
Flash Mode: qio
Flash Frequency: 40Mhz
Upload Using: SERIAL
Reset Method: nodemcu

Sketch

#include <Arduino.h>

  Serial.printf("Connecting to %s\n", ssid);
  delay(500);
  WiFi.begin(ssid, password);

  int Attempt = 0;
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Attempt++;
    Serial.print(".");
    if (Attempt == 10)
    {
      Serial.println();
      Serial.println("Could not connect to WIFI");
      return;
    }
  }

[devyte]

@williamesp2015 I suggest trying with release 2.3.0 or latest git. Since SDK 2.0.0, there is a new rf calibration done on startup which might help you.
Having said that, this is not the right place to ask for assistance.
Closing as off-topic, see #3655 .