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You need to use UDP broadcasting. Start with this example: https://www.b4x.-chat-with-auto-discovery.75713/#content
link: So, to search for the board, I first use the udp protocol and after finding its address, I connect via tcp (tcp is better for my work because I have m

This is a false positive related to the new executable. There are similar reports after each new version. The UDP communication is part of the new auto discover feature.
link: I had the same problem. Norton claimed it had seen the file fewer than 5 times, and deleted it automatically. I restored it and installed the software

This is not something that you can simply find. Your device isn't familiar with other devices on the network. You can use UDP broadcasting feature to find other devices running your apps: MQTT Chat with Auto Discovery

Sorry everyone, I made a mistake on the name, it should be "UDP_PacketArrived". Now it works normally. Sub Process_Globals Dim UDPSocket1 As UDPSocket End Sub Private Sub Application_Start (Nav As NavigationController) UDPSocket1.Initialize("UDP", 30303, 8000) End Sub Public Sub Dis
link: When I use UDPSocket, it returns "error sending data: 13", do u know what is the problem? I using B4i 6.5 and IOS 12.4.8, Hope you can help, Thanks. S
link: You can find the broadcast address with UDPSocket.GetBroadcastAddress.

There is no relation between MQTT and UDP discovery. It is just an example that uses UDP to discover the "mqtt server". This is not what I said... Finding the broadcast address: B4A: https://www.b4x./#content B4J / B4i: UDPSocket.GetBroadcastAddress You should use UDPSocket.GetBroadcastAddress
link: I am trying to implement UDP auto discovery in IOS. I am trying to follow the "MQTT Chat with auto discovery" sample program provided. However, this

Quello lo vedrei un problema minore. In rete locale l'IP si può trasmettere con pacchetti UDP in Broadcast a tutta la sottorete. Erel ha realizzato un esempio. https://www.b4x.com/android/forum/threads/udp-broadcast-address.75694/#content Vedi anche MQTT auto discovery: https://www.b4x.-chat-with-

Length) As Byte 'bc.ArrayCopy(Packet.Data, Packet.Offset, data, 0, Packet.Length) Dim ds As String = msg ' serializator.ConvertBytesToObject(data) If ds <> DiscoveredServer Then DiscoveredServer = ds Log("Discovered server: " & DiscoveredServer)
link: I found a UDP application (MashUDP) with this permission: AddPermission(android.permission.CHANGE_WIFI_MULTICAST_STATE) But this App also does not w
link: Hi, Actually I have not used B4A-Bridge much, because it makes my phone restart without explanation, I've already reported this before. I am using US
link: Are you using B4A-Bridge? Do you see the "red heart" icon?

Hi, just tried UDP discovery over hotspot but unfortunately it doesn't work. The good way for you is MQTT. If you are using ESP32, think about bluetooth LE for discovery, get the IP from bluetooth then connect via WiFi Bye
link: Hi, not sure if it will work on the phone hotspot, but at home i can discover in few seconds all my esp based devices' IP address using UDP broadcasti
link: Yes, the ESP has a short routine to answer to the app. It sends a json containing its IP and some other info about it (i.e. the device name, so it's e
link: @ DavideV, mmm, i would be very interested in how you did that... Did you also change something in the ESP program (to broadcast that UDP?)?

1. Network communication: Network + AsyncStreams + B4XSerializator 2. Discover devices using UDP: https://www.b4x.-chat-with-auto-discovery.75713/#content

The GetBroadcastAddress function returns an IP address that sends UDP data to each device on the network: https://www.b4x.com/android/forum/threads/udp-broadcast-address.75694/ Works great.
link: Any pointers appreciated. Added Later: I found an example of sending UDP packets: https://www.b4x.-library-v1-10-udp-supported.9099/page-2#post-7678

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