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Questions tagged [connectivity]

Anything related to connectivity, i.e. the ability of systems to communicate with remote systems using some form of communication channel. Often used for questions on network connectivity.

Anything related to connectivity, i.e. the ability of systems to communicate with remote systems using some form of communication channel. Often used for questions on network connectivity.

720 questions
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4 answers

Checking internet connection with JavaScript

Is there a way to check internet connection using pure JavaScript, without requesting something from the web? I've tried to use alert(navigator.onLine); but it always returns true. Thanks!
Dropout
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3 answers

null pointer exception on ConnectivityManager

My aplication class is activity to get aplication context and use it else where.isOnline is called from some class JSONParser, which is not an activity. isOnline is called by getJSONFromUrl(). Test is method of B class.test() is called by activity…
Yarh
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2 answers

how to check internet connectivity in the device in android

Possible Duplicate: how to check wifi or 3g network is available on android device Check the Internet Connectivity in Android I am using an Android device and I am disabling the WiFi connection in my device.Now I have an application which uses…
Jack Dsilva
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1 answer

php_network_getaddresses: getaddrinfo failed: No such host is known,why is this showing

$con = mysqli_connect("localhost ","root "," ","project");//connectivity This is code, I am getting the error: php_network_getaddresses: getaddrinfo failed: No such host is known
shritej lakade
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2 answers

How to switch off iPhone Internet and data package network connection?

I want to make an application that tracks the total consumption of Internet data or in other words a data tracker. If the set limit is reached I want the Internet data package connection to be disabled. Is it possible with the iPhone SDK? If yes,…
usman zafar
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1 answer

Vertex connectivity computing with R

unfortunately this is my second time I post this question because I did not receive an answer in the first place. Googling it the past few days, did not help me so I hope, that this time, someone can help me. I have to calculate the vertex…
Blackeagle
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1 answer

Wanted to make server on Apache Cordova

i wanted to make an app for my college with apache cordova in visual studio 2015. For this i need my app to connect with database and make a server. PHP is not going to run on this software. i want coding for my app, if anybody could help please.…
Mohit Sharma
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1 answer

Android check if network authenticated

I need to check user have connected with CONNECTIVITY_SERVICE so below code give me that result which return isSourceAvailable "true". ConnectivityManager connectivityManager = (ConnectivityManager)…
Manish Jain
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1 answer

How to Home Network several devices

This is a little bit about Home Networking i have this challenge that i want to Network my devices (smartphone, laptop, tablets) This is the case: I have a laptop that contains all my files (songs, pc games, movies, ebooks etc.). this laptop has…
MIC
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5 answers

Can't connect to my database, Error is unexpected '['

"; echo "Name: ".row[1]."…
Rohan Saini
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2 answers

What after connecting AWS database and MYSQL WorkBench?

I need proper explanation and steps to connect to an RDS database from my AWS Elastic BeanStalk Project. I have already created a RDS instance on AWS and successfully connected to it from MYSQL Workbench. After that, I have also connected it to my…
Swapnil Kotkar
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2 answers

HTML and PHP Database Connectivity

I am using this code. To insert name and rollno in table named 'tablename' in database 'dbname'. db.php
Enter name

…
Mdumanoj
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1 answer

WiFI using Realtek RTL8812AU not found (Ubuntu 16.04.3 LTS)

Currently I can't use Wifi on my Ubuntu 16.04.3 LTS. However same hardware works, when booting Win10, or using Ethernet on Ubuntu. When setting up the machine (desktop and external wifi adapter) I did lsusb and recieved following information: Bus…
user2878448
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1 answer

Graph theory puzzle about connectivity?

You have a graph of n nodes (numbered 1-n) and m edges. You remove all the nodes one by one, and at each step you check if the graph is fully connected or not (by printing "connected" or not). The order of the nodes to be removed is given. For…
Bob Billy
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1 answer

How to count the number of times internet connectivity change in a android application

I am able to detect whether the application is connected to WiFi or mobile network.But I am not able to log the number of times the internet connection changes from Wifi to mobile network or vice versa.To log the network change do i need to check…
padma
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