Questions tagged [networking]

Generic network issues. Before using this tag, check if there's a closer fit (see tag wiki).

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Wifi connects disconnects on android

I have android device with stock android(moto edge 20). Whenever the wifi signal(router) are weak the wifi disconnects. This problem is frequent when my device is connect to a Bluetooth device. This ...
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An app in Android phone which can act like "netstat" command in Windows [closed]

In Windows with netstat command we can find which exe file is connecting to which IP address. I am looking for such an app for Android phone.
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Detect the Incoming TCP Packets

I am developing a feature in my application for screen mirroring for which I need to open a wide range of ports (approx. 10000 number of ports) in my android system. It is a risk to open all these ...
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I need to block some videos (inside Youtube app) and sites (inside Chrome or another browser) using keyword

example: I want to block pages/videos where the content/title contains the word "fish". How can I do it? Thank you.
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Android phone won't connect to LAN computers/NAS box

I have an Oppo Find X3 Pro running Android version 12. On my phone, I have file and network explorer app ES Pro installed. In the app, when I click on 'LAN' or 'Network', it detects all my Windows PCs ...
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Hotspot DHCP issues without mobile data (dhcp4 request timed out)

By default, does the Android "hotspot" functionality provide a DHCP server to its clients? Or does it just pass DHCP info on from the network that it's connected to? I'm trying to create a ...
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VPN broke my network connection, how can I restore it?

I have a problem on my Lenovo K33a48 with Android 7.0. The problem manifests in almost all my google apps showing that there is no internet connection (Chrome, Play Store, Gmail), not syncing to my ...
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Change network interface name in persistent way on Android [duplicate]

Is it possible to change the name of a network interface in an Android 11 rooted system making the change persistent? I am not looking for just renaming the interface after the boot, I want to change ...
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Share RTSP stream over different subnets

I have a non-rooted Android device that is connected through ethernet to an IP camera. Any RTSP player can play the stream using the address rtsp://192.168.105.180:554/live/0 This device can also ...
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1 answer
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Disabling randomized macs on Android 11

Trying to set up a new Moto-G Stylus with Android 11 on an internal wifi network with mac authentication and a hidden ssid. To provide the expected mac, I selected "Use device MAC" (which is ...
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Port Forwarding Outside Local Network Using Phone Network

I want to forward my local port outside of network as does in routers but through phone's network. I having Android 11. I have looked many pages and fortunately found this but this seems like it does ...
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Android 11 does not seem to use DNS

On my Android device, I'm connected to a wifi router which is connected my home network. I tried setting DNS to 8.8.8.8, 1.1.1.1, and other DNSs. If I ping, say, 8.8.4.4, the connection works. ...
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Android phone cannot access internet when connected to bridge mode router

I have 3 routers in the house. 2 are using bridge mode (for wi-fi coverage) and 1 main router My other devices work fine (either connect to the main router or bridge mode routers) All routers use the ...
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VPN Connection Details?

Is there any way to see details (VPN IP Address/Protocol/Port) of a saved VPN connection which located under network settings in Android 10 and newer versions ?
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Taking a long time to connect to the internet (connected - no internet)

This is not a permenant problem but rather an intermittent, yet constant one. Lemme explain... A few days ago I changed my wifi router and my phone would connect to it but it says "connected, no ...
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unlocked phone can be used for all compatible phone service providers?

There is an Android phone ad like this: Due to USA carrier VoLTE restrictions, this phone is only certified to work on T-Mobile and T-Mobile MNVOs(Mint Mobile, Google Fi, etc.) It however is unlocked ...
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Some android apps not working on WiFi, but working on mobile data

I've had a strange scenario these days. While on WiFi connection, whenever I tried accessing certain apps from my android device, they would be stuck on the loading screen forever. Other apps were ...
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Does TubeMate use some peer-to-peer network?

I was using TubeMate to download my first video with TubeMate, and I got banned from the Wi-Fi network I was using: Online activity through a browser or application has been flagged as malicious or ...
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Phone's download speed doesn't go over 10 Mbps(1.2 MBps)

I have an ASUS Zenfone Max Pro M1(X00_TD). Lately, I have noticed that my phone's downloading or uploading speeds don't go over 10 to 15 Mbps. It has a 2.4 G wifi and easily used to give me 40-60 Mbps ...
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How to Block an IP Address on Android

There's an IP address keeping ICMP my network every minute. I've already blocked the IP on my router, I'd like to know how to configure traffic control on Android if possible. Please tell me if there'...
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Mobile hotspot with outbound firewall

Goal: A mobile hotspot that limits outbound connections to an approved set of domains or IPs. OK to connect to twitter.com, but reject facebook.com. Etc. Idea: Use an Android phone (as a hotspot), ...
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Do Android permissions allow listeners on ports >1024 without special root permissions (only standard in-app permissions)

I'm not an Android developer, I am a developer in many other contexts. I have a simple question that I don't see an answer to on Google: Can a standard android application (no rooting required) listen ...
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bluestacks and lan (local network)

I have application that can control my TV. It needs access to local network to work. How can I make bluestack see devices in my local network ? Best regards.
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My Xiaomi Android smartphone suddenly doesn't see my WiFi's SSID in the WiFi connection list

I've had an internet outage and afterwards my Android 9 Xiaomi smartphone did not see my SSID at all in the system WiFi list and in the WiFi Analyzer app. My phone only supports 2.4 GHz WiFi, whereas ...
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Android localhost to hotspot wlan0 UDP port not accesible

I have a drone remote that has android in it. It has an internal telemetry server that is publishing data on localhost:14445 via UDP. When I open the hotspot from this device and connect to it with my ...
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Android TV Box Gigabits Connection

Is there any android apk app which is able to display a LAN network connection speed such as 100Mbps or 1Gbps. If this is not possible, is there any app that is able to display the network chipset ...
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1 answer
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Where is the WiFi MAC randomization data stored?

In the newer Androids there's a feature called WiFi MAC Randomization. In its basic form, the mechanism calculates the random MAC for a given ESSID. Each time you connect to the same WiFi, Android ...
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Cannot bind to Cell Network Interface example with curl

I am trying to use the Mobile Network interface rmnet_data0 while Wi-Fi wlan0 is enabled. You can read my progress with the developer JsBergbau of BindToInterface at this link https://github.com/...
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How to find unknown IP address on Android

I believe I have a sort of unique question in how would I determine an unknown IP address through an Android device which is connected directly to a IP enabled piece of hardware via USB-C to Ethernet ...
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1 answer
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How to make Android device visible to Bonjour / Zeroconf with .local name?

I would like to access my device as myandroidthing.local, as I can do it with my (both Linux and Windows) laptops. Is it somehow possible? Most ideally, it could be done by some app what I can install ...
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Using different port for IKE2 VPN on Android

My question is fairly simple: I would like to create an IKE2 VPN commection on stock Android11 but I don't want to use the default 500 or 4500 ports. How can I do that? I tried applying a colon then ...
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How to exclude a specific destination IP from VPN?

I want to route a specific IP address from hotspot (wlan0) to Mobile Data (rmnet_data1) interface on Android 11, bypassing VPN. I use my phone as a hotspot and also with the help of an app called &...
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Why does blocking of incomming connections via AFWall cut off the network connection?

There are couple of Android firewall apps in the wild, for instance AFWall. It manages iptables rules. Usually for client devices, admins set the default policy for the INPUT chain to block, but when ...
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How do rndis0 and eth0 interfaces get set up?

In a normal installation, looking at ifconfig (or ip) in adb shell, there are no rndis0 or eth0 interfaces set up. Once USB tethering or ethernet tethering is enabled, they show up. With my GNU/Linux ...
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WIFI ON but Play fails "No internet connection. Make sure WiFi ..."

Recently i decided to check for app updates and Play refuses to work and popup the error "No internet connection. Make sure WiFi or mobile data is turned on." However WIFI is enabled and ...
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Why 'ping localhost' command in Termux returns a normal response even though there is no local web server?

I just tried 'ping localhost'command in Termux and response was positive. How this is possible since I don't have a local web server running.
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Intercept packet data

Is it possible to create a service that is able to intercept and modify incoming and outgoing data packets from Android before further processing? Does Android have a port system for data entry and ...
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USB networking setup between Android and embedded Linux

Cross posting this question that I also asked on ServerFault: I'm working on a project right now where we have an embedded Linux system running some sensor/motor control functionality, and we're ...
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Android wifi tethering (hotspot) DNS server (dnsmasq) returns 127.0.0.1 for some domains

My laptop connects to the internet through Android wifi tethering (hotspot). Some websites cannot be connected because my Android DNS server returns 127.0.0.1. I can browse the sites on my Android ...
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Generic approach to get Ethernet working on android

Is there a generalised approach to getting Ethernet cable networking to work on (preferably) recent Android versions with minimum fiddling? I've looked at other similar questions but they focus on pre-...
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Binding to a specific interface in adb port forwarding

When running adb forward tcp:8080 tcp:8080, the port forward listens on localhost. Is it possible to make it listen on a specific interface?
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How to activate band aggregation all thee time when available (4G+ at all times)?

The 4g+ network only activates when network is under big load. I'd like to have 4g+ activated as soon as it is available and as long as it is available. Does anybody know where I can change the ...
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Is there an option to block local network access for apps?

I'm trying to prevent apps from accessing other devices on the same network (LAN). Something similar to this iOS setting. Some searching led me to this feature in Express VPN. Is there a way to do ...
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Share internet through otg-ethernet from terminal

I know other threads already exist but none of them answer this specifically. My OTG ethernet cable works only when used as a client, i.e. when a DHCP server is recognized. I want to be able to share ...
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Android devices not finding some devices on my network

Some devices that I know to be on my network and working correctly I cannot find using my Android devices. My desktop PC and laptop have no issues and if I navigate to my router interface everything ...
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How google home app works?

I am developing a new iot project to monitor air quality in the environment. the device, ESP8266, needs a wi-fi connection, which we usually put fixed in the code that the microcontroller will run, ...
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How to allow other devices to resolve android hostname from ip?

i have played around setting up hostname for the device, so i tried to modify net.hostname setting inside /system/build.prop file but even after device restart it gave me "android-...
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Set android as internet gateway to local router (Not mobile hotspot)

Background I have a local network and I want to have my mobile serve as an internet gateway when entering the network. What I'm asking is asked here, here and here. An advanced version has also been ...
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Internet access via wi-fi is ok, but just not financial apps

I have hit the same problem with a couple of apps on an Android phone. The phone has no issue with Internet access using wi-fi. Web browsing and other apps run ok. However, two apps hit connectivity ...
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USB ethernet goes to sleep, has to be reconnected to restore

I have an old Nexus 7 tablet running LineageOS that still works but has poor battery life. I've set it up in a fixed location with AC power instead. Its location has poor wifi so I've added a UGreen ...
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