Wifi connection fails - only works after router reboot

### Basic Infos

- [X ] This issue complies with the [issue POLICY doc](https://github.com/esp8266/Arduino/blob/master/POLICY.md).
- [X ] I have read the documentation at [readthedocs](https://arduino-esp8266.readthedocs.io/en/latest) and the issue is not addressed there.
- [ X] I have tested that the issue is present in current master branch (aka latest git).
- [X ] I have searched the issue tracker for a similar issue.
- [ ] If there is a stack dump, I have decoded it.
- [ X] I have filled out all fields below.

#### Platform

- Hardware: esp8266
- Core Version: 3.0.2
- Development Env: Arduino IDE
- Operating System: Windows

### Settings in IDE

- Module: Wemos D1 mini
- Flash Mode: DOUT
- Flash Size: 4MB
- lwip Variant: v2 Lower Memory
- Flash Frequency: 40Mhz
- CPU Frequency: 80Mhz
- Upload Using: SERIAL
- Upload Speed: 921600

### Problem Description

The WIFI connection is very unstable. It often works just after router restart but few times later the connection fails.
The debug message tells me that I am connected but the status stays at 0 and never goes to WL_CONNECTED
I have tried with many ESP8266 wemos d1 mini hardware it is always the same problem
The connection works fine with an ESP32.
Thanks for your help

```
#include

void setup()
{
Serial.begin(9600);
Serial.println();

WiFi.begin("SFR_5758", "xxxxxxxxxxx");

Serial.print("Connecting");

while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print(".");
}

if (WiFi.status() == WL_CONNECTED) {
Serial.print("Connected, IP address: ");
Serial.println(WiFi.localIP());
}
}

void loop() {}
```

### Debug Messages

```
22:29:28.936 -> SDK:2.2.2-dev(38a443e)/Core:3.0.2=30002000/lwIP:STABLE-2_1_2_RELEASE/glue:1.2-48-g7421258/BearSSL:6105635
22:29:29.076 ->
22:29:29.076 -> fpm close 1
22:29:29.076 -> mode : sta(8c:aa:b5:7b:1f:5f)
22:29:29.076 -> add if0
22:29:29.123 -> Connectingwifi evt: 8
22:29:29.962 -> .wifi evt: 2
22:29:30.991 -> .scandone
22:29:32.724 -> state: 0 -> 2 (b0)
22:29:32.724 -> .state: 2 -> 3 (0)
22:29:32.770 -> state: 3 -> 5 (10)
22:29:32.770 -> add 0
22:29:32.770 -> aid 3
22:29:32.770 -> cnt
22:29:32.770 -> state: 5 -> 2 (2c0)
22:29:32.770 -> rm 0
22:29:32.816 -> wifi evt: 1
22:29:32.816 -> STA disconnect: 2
22:29:33.703 -> .reconnect
22:29:33.749 -> state: 2 -> 0 (0)
22:29:33.841 -> scandone
22:29:33.841 -> state: 0 -> 2 (b0)
22:29:33.841 -> state: 2 -> 3 (0)
22:29:33.887 -> state: 3 -> 5 (10)
22:29:33.935 -> add 0
22:29:33.935 -> aid 3
22:29:33.935 -> cnt
22:29:33.935 ->
22:29:33.935 -> connected with SFR_5758, channel 11
22:29:33.983 -> dhcp client start...
22:29:33.983 -> wifi evt: 0
22:29:34.686 -> ..........pm open,type:2 0
22:29:44.684 -> .............................................................................................
```