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

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2answers
6k views

How to hide my android wifi hotspot from being detected?

I have a Galaxy Young phone and a 3g connection. I use my phone like a wireless modem but I don't want other devices to find my WiFi hotspot when they search for WiFi. How can I stop other devices ...
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1answer
290 views

Is it possible to connect to chromecast through router while still using data network for internet?

Here's the setup I am envisioning: Chromecast and android phone both connected to a WiFi router/hotspot (has x amount of data usage). My phone however has unlimited data usage and I would like to ...
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2answers
379 views

Very high mobile data usage reported by carrier, no evidence in phone

My phone is a galaxy Note II, I found out yesterday that I breached the 5 GB limit of data usage for the month when the carrier completely cut my data connections. I went to check the reported usage ...
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1answer
895 views

How does Android determine if it has an Internet connection?

My Nexus 10 (Android 4.4.2, unrooted) is not playing nice with my wireless network. Although it can connect and I don't have any problems browsing the web, for some reason Android thinks that it doesn'...
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1answer
3k views

Where to find IP address in file system (e.g. proc or sys)

Is there a way to get the IP (v4) address of an interface in the file system of Android? I know I could use ifconfig or netcfg but I would like to use a monitoring tool which can only access files and ...
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1answer
80 views

Traffic analysis and inconsistent results on Nexus One

my question is aimed to those who have already performed some kind of network traffic analysis on Android. My device is a rooted Nexus One. I've developed a simple C program, using Pcap Libraries, ...
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1answer
2k views

Do I need to root my phone to get a tcpdump?

I'm troubleshooting my aCal installation and the good folks at aCal asked me for the output from tcpdump -A -- do I need to root my phone and install busybox or can I do this from a terminal emulator?
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3answers
2k views

How to simulate cell signal loss?

The program (CSipSimple) seems to work not well when cell data network is unstable. It works OK hovewer if you manually switch it on and off. How to simulate bad network connectivity (e.g. going by ...
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1answer
239 views

Block all connections except a single host server ? (block by server not by app)

My mobile company offers a free package for facebook with unlimited bandwidth , however when I open my 3G connection the mobile automatically connects to unknown servers (maybe google) and the mobile ...
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0answers
5 views

How can I play media on my phone and windows computer at the same time?

I have a server running with its hard drive as both a DLNA media server and also a generic NAS, so I can play media from any which device. I'm looking for a way to play a video file from both my ...
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0answers
29 views

How to maintain established connections android when changing wireless network

I need to resolve the following problem. I runs my application android conected with my server on cloud, but my established connections disappears when I switch the (Wi-Fi) wireless network. Why this ...
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0answers
93 views

How to enable/disable DHCP of eth0

"ifconfig eth0 dhcp start" or "ifconfig eth0 dhcp drop" does not seem to work for Android. Is there a way to enable/disable DHCP for eth0 via shell commands?
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0answers
65 views

What is an easy method to test whether UDP traffic is blocked?

What is an easy method for an Android device to tell whether a data connection (either WiFi or mobile data alone) has UDP traffic blocked? Many corporate and public access points restrict UDP access, ...
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1answer
70 views

Forward tethered device?

Alright, so I have a raspberry pi (192.168.42.53 on rndis0) that is tethered to an android tablet to access the internet. The tablet is connected to my home LAN via WiFi (on wlan0). How do I forward ...
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0answers
176 views

Accessing NAS from VLC Player on Android TV?

I'm having a lot of trouble accessing my Synology diskstation from the VLC Player Application on my Sony Android TV. There's no option to configure the network and so I'm not sure where the source ...
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0answers
209 views

OpenVPN Connect (Android): How to allow local traffic to bypass VPN

I use the OpenVPN Connect app on my Android devices to route my internet traffic through commercial VPN Service providers (Private Internet Access and IPVanish). I can access the internet through the ...
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0answers
43 views

android networking

I have a spare android which i always leave at home. I wonder if i can use it as a server using its mobile hotspot because i dont have a router and internet at home. Friends always come and always ask ...
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0answers
81 views

Connect Android devices via (ethernet) cable

I want to assign static IP Addresses to my Android devices, and connect them via say Ethernet cable. Essentially create a network by connecting android devices using physical wires and have IP ...
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1answer
423 views

Static IP Address in Android x86 persistent after reboot?

I would like to have a static ipaddress on my Android_x86. I know there is a lot of questions about this and i tried some proposed answer, like : su ifconfif eth0 down ifconfig eth0 [IP] netmask [...
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0answers
86 views

Private communication over wifi but internet over 3G

I have a raspberry pi which creates an WiFi hotspot and I want my android app to communicate with the pi over that connection. The big problem now is that the pi has no internet access so I would like ...
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1answer
109 views

Connection timeout to single IP

I have a strange problem and I am not sure how to debug this. My Android phone (OnePlus One, Android 5.1) is connected to my WiFi (FritzBox 7490) at home. Everything works fine except connections to ...
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0answers
165 views

Routing instead of NAT/Masquerade for WiFi Tether clients

When clients connect to Android Tethering they get IPs of the private Tethering networl. There is plenty of info available on how to NAT/Masquerade WiFi tethering clients (for example into a VPN), but ...
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2answers
656 views

UDP communication between PC and Android via ethernet

1. I am testing with a rooted nexus 5 operating on lollipop 5.1. 2. This is all with no wifi connection. I am trying to send UDP packets between a PC and an android device with an otg cable and ...
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0answers
118 views

Ngrok (compiled for Arm5) crash on android: can't find core dump files!

I downloaded Ngrok which I want to install on a old HTC Hero [the project is to transform the phone in a ipcam, reachable behind a NAT network], so I chose the version compiled for Arm5. You can find ...
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0answers
49 views

How does Android perform Data-Wifi Switch

I am trying to learn from Android source on Data-Wifi automatic switch. The closest I can get is DataCommand and WifiCommand, they seem to switch network preference (through ConnectivityManager), by ...
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0answers
255 views

Create static route for WiFi connection

My android 4.4.2 device is on a corporate network which requires a static route to access another subnet. This static route is served by DHCP but I don't think Android is respecting it. Is there a ...
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0answers
127 views

Win 7 wifi hotspot connection not able to share internet

I have created an ad-hoc wifi hotspot connection using > netsh wlan set hostednetwork mode=allow ssid=WinWlHS key=MyPassword keyusage=persistent Then I have started hotspot using netsh wlan ...
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0answers
346 views

SSH Key generation

How do I generate a pair of SSH keys to be able to use in several apps (Juice SSH, Turbo, etc) to access my remote host? I've tried generating them with Connectbot, JuiceSSH and on a Linux machine, ...
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0answers
232 views

Lenovo USB 3 to Ethernet adaptor not working on Nexus Player

I have a Nexus 5, a Nexus Player, a USB OTG cable, and a Lenovo USB 3 to Ethernet adapter. If I plug the Ethernet adapter into my phone (using the OTG cable of course) it loads the cdc_ether driver ...
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1answer
2k views

Why NFS mounting works with XBMC/Kodi on stock Android?

I have tried to mount NFS shares on my recently rooted Nexus 5 (Mahdi), and found that the CIFS manager app doesn't work, although it claims that I need a rooted device. I also noticed that XBMC/Kodi ...
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0answers
337 views

Connecting to a network that blocks non-computer devices with Galaxy S4

I would like to connect my Galaxy S4 to my school's WiFi network in order to cut down on expensive data usage. The problem is that some mobile devices (including my phone) can't connect, so I can't ...
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0answers
70 views

Change how a phone identifies itself on the network

I currently own a Nexus 5. My mobile carrier just now begun providing LTE, but my Nexus 5 apparently isn't in its "list of compatible devices". Is there a way for me to change how the network ...
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1answer
46 views

Blocking all external traffic and allowing only internal traffic through

we are trying to use Android tablets in a production environment however we only want the users to be able to connect to internal ip addresses and block all external to lock them out of doing things ...
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0answers
141 views

Why does my Android have an 8MB hosts file blocking thousands of sites?

Background: my Android is the only source of internet I have - I use it as a hotspot while at home. I have been noticing strange behavior out of my Desktop PC recently: sites like Amazon were not ...
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0answers
124 views

How can I connect two android devices to the same network over the internet?

Many phone functions (local WiFi-only games, networking, etc.) are only possible/are made much easier by having the two devices connected to the same network. I'd like to do this, if possible, ...
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1answer
324 views

Stopping Local Communication in android hotspot

How can I stop two devices from communicating among themselves if they are connected to my Hot Spot.(for eg I want them to not be able to ping eachother)
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0answers
526 views

OpenVPN on Android 4.4 not working

I'm running CyanogenMod 11 unofficial ROM and I can't seem to get VPN working. I've tried different OpenVPN clients. All of them connect to the server, but there is no traffic; the connection just ...
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0answers
407 views

Is there a way for 3G to not disconnect when connecting to WiFi?

WiFi is unreliable, I wouldn't trust WiFi for SIP calls, I've disabled WiFi within CSipSimple. Now every time I connect to WiFi, my SIP registration seems to go away, and I'm not receiving any calls ...
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0answers
531 views

Does the API expose the ability to use multiple network interfaces simultaneously?

I'd like to know if it's possible for an Android application to transfer data via WiFi and mobile simultaneously, or any other network interface such as USB or Bluetooth tethering, without requiring ...
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0answers
28 views

CM network connection icon is grey [duplicate]

I'm using CM 10.2 nightlies on my S 3 (i9305, intl. w/ LTE). However, even though I seem to be connected to a network - the status icon is greyed out. What's even weirder: I can access the web, but ...
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1answer
503 views

How use call a local server by name rather than IP?

I've started MAMP on my computer and I'd like to make a GET call from Android app. I'd like to access the computer by it's name(e.g. computer.local:8888) rather than the computer's ip. On the ...
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0answers
300 views

Possible to connect Android device to Internet with Ethernet

I want to connect my Samsung S3/S4 to the internet using an Ethernet cable and USB network adapter. Is this possible? I have tried a couple different adapters, which don't work, and leads me to ...
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1answer
746 views

Galaxy S4 filtering incoming connections

I am trying to run an ftp server app on my galaxy s4 (tmobile) and it starts ok, binds to the wifi address and port 8021, but then I can't connect to it. I tried pinging my internal ip address as well ...
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0answers
423 views

No web access on Android 2.3.7

I have an LG Optimus V, rooted, with Cyangenmod 7.2.1 (BackSide-IHO) that has developed, lately, a weird network problem: While on 3G (or wifi) every app on the system with the exception of the two ...
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0answers
832 views

Ports on the Android PHONE

I often use my Samsung Galaxy Note2 on local WiFi networks which are protected by a firewall, and experience problems with some apps which are most likely caused by strict firewall rules. Is there ...
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0answers
169 views

Rooted Kindle Fire can't connect to Socket

I rooted my first-generation Kindle Fire (at the time running 6.3.2) so I can run Jelly Bean on it. However, when programming a simple networking app, the following line: Socket sock = Socket(...
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0answers
842 views

Connectify doesn't work with Android

I use Connectify Hotspot Pro to create Wi-Fi network. However, my Android phone is unable to display this Wi-Fi hotspot at all. What do I need to do to make it work?
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0answers
1k views

Why won't my Galaxy Tab 2 connect with WiFi or USB?

Whenever I try to connect to WiFi or my PC with USB, it always just says "connecting..." indefinitely. It detects my WiFi signal, kies detects the tablet, but neither one has managed to actually ...
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1answer
1k views

Can the MK802 III use an ethernet connection instead of wifi?

Just got the MK802III and got some Ice Films related apps installed. A lot of the content is streaming, so I'm wondering if I use an ethernet cable to connect to my router via USB to the 802, if I'll ...
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0answers
359 views

rooted android JB 4.1.1 razr m , Map network drive with VPN

So I established a VPN using openVPN app on my phone. My phone has an IP and everything on the network. What I would like to do now is browse the network drives remotely and possibly download files to ...