Connect to blynk via external network

[Bruno_Smicaluk]

Hi guys, sorry if you didn’t understand something, I’m using google translate to translate

I come again to ask for your help, I have my project with Blynk using an Arduino Wemos board that contains the ESP8266. In the local network it works normally, but I would like to access it remotely from other networks, how do I do this?

[Madhukesh]

With your explanation i think you are using the old platform Blynk 1.0 with local server… if so you will have to port forward your router, in order to access your devices from outside your local network.

I would suggest you to move your projects to the blynk’s cloud server… so that you need not worry about port forwarding n stuff.

[Bruno_Smicaluk]

Hi,

Which port should I do this?

[Madhukesh]

Port 8080 and 9443.

This is not as simple as it seems. If your service provider is blocking any of these ports, then you cannot do so.

Go through this post

Port forwarding in 2020

Hello everyone, I have created a local server and everything works perfectly. Now I have to expose the server to the internet. Which ports I need to expose for a full working server? I looked some old discussions but it looks that blynk server ports changed during time. Sorry for my bad english. Greetings from Italy, Nicola Lorenzini

Mr @PeteKnight has explained everything here.

Port forwarding in 2020

To use your device running the app outside of the home WiFi network you need to forward port 9443 and either have a static public IP address or use a DDNS service and run an updater on a device within your home network. The alternative is to use ZeroTier to create a virtual network and add your server and your phone to this network. In that way no port forwarding or DDNS is needed and you have a way to remotely manage your server at the same time. Pete.

[PeteKnight]

You don’t need to forward port 8080 unless your devices (ESPs etc) are on a different network to the server.

Pete.