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Phone cannot connect to Blynk local server

My PC has created a Blynk local server, I enter the server IP in my phone
And create a new user but can’t sign in

  1. Server version: server-0.39.4
    2.android 7.0 operating system
    3.Windows 10 operating system

I am from Taiwan, English is not very good.

I hope you can help me.

first, try the last release of blynk server 0.41.7

Is this version suitable for starting blynk server 0.41.7?
%E8%9E%A2%E5%B9%95%E6%93%B7%E5%8F%96%E7%95%AB%E9%9D%A2%20(12)

give it a try, I don’t know this java version
I use this version

java version “1.8.0_211”
Java™ SE Runtime Environment (build 1.8.0_211-b12)
Java HotSpot™ Client VM (build 25.211-b12, mixed mode, sharing)

what do you see if you ping your server ?

Make sure that you are connected on same network as of your local server.

Yes, on the same network

I got this error, don’t know how to fix it?

Update your Java runtime

How do I download the latest version of JRE?

I did not see the latest version of jre at the Oracle download point.

I followed the instructions on https://github.com/blynkkk/blynk-server
Install the Java SE 11 but don’t install the latest Java runtime. It will result in an error, like in your screenshot.
After that, setup mail.properties and server.properties, both of which should present during first .jar execution. If you already executed it, delete everything in the folder except the .jar, and both .properties. Execute again. If it still doesn’t work, edit the server.properties and change the “https.port=9443” to 8443. Try to create a new account using the phone. It worked for me, but everytime i turn off my computer it happens again.

Java SE DK - https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html

I downloaded the URL you gave and installed it, CMD shows error

Download Java 8 Update 201 Offline Installers

The problem is still