Questions tagged [networking]

Questions about home networks, internet, repository issues or anything else regarding networks.

502 questions with no upvoted or accepted answers
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19k views

Static IP configuration in dhcpcd.conf ignored

My RaspberryPi 3 running Raspbian Jessie ignores my static ip configuration of adapter wlan1 (USB WiFi) in /etc/dhcpcd.conf. (At the moment it's physically not possible for me to test wlan0 and eth0.) ...
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1answer
115 views

Rasberry Pi - network boot with old router

I apologize in advance if this is a stupid question, but I really don't have a good background knowledge about networking. I did try to google all this stuff, but I simply couldn't find anything ...
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131 views

eth0 'bricked' - no link light despite fresh install of Raspbian

I am currently working on a project to set up a Pi 3 to serve DHCP leases to devices that connect to an isolated local network to configure them. In the process I have somehow managed to render eth0 ...
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213 views

Static IP address for a specific hardware interface

I have a Raspberry Pi 3 and the on-board WiFi isn't strong enough for my needs. Thus, I have an USB WiFi that is plugged in there. I set its static IP address using wlan1 and I thought that would be ...
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34 views

Weird Ethernet behavior when switching SD card between Pi 3's

I've got a number of Raspberry Pi 3 Model B's running Raspbian-Jessie-Lite (2017-04-10) that I've been trying to test switching the micro SD card between. I can have a Pi up and working perfectly and ...
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190 views

Unable to install vnc server as unable to update

I have just installed Raspbian on my Raspberry Pi. Now I want to install the GUI. So for that, I tried to install VNC server by runing sudo apt-get update Which gave me the error: temporary failure ...
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114 views

Pi 3 cannot see Ubuntu hotspot Wi-Fi

I want to connect my pi3 wirelessly, for that i need a hotspot wifi. But hotspot should be on laptop which is Ubuntu 16.04 LTS on it. When i try to scan all wifi on Pi it can see only Windows-Android ...
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363 views

Connect RPi to Hard Drive Connected to Router

I am trying to connect my Pi to a hard drive connected to my router. This was easy to do on Windows, but I can't figure out how to do it on here. Please help
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1answer
202 views

Python Code for Home Automation times out

I was making a python script for home automation using Adafruit IO as a conduit between IFTTT and the Raspi, and it works great for a while. But after a few hours, it just stops working. I have no ...
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528 views

does the BCM43143 wifi chip on the RP3/RP0 support ad hoc networking?

I'm planning on using the virtualhere app to set up a portable usb over ip server as well as giving me a way to screen cast (when i'm away from my home network) to my yogabook, which is irritatingly ...
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99 views

Route one ip from wifi to ethernet

I got this network: I run an application on my RPi3 (hosting on 10.0.0.1) and I plug it on a server (which run an other application hosted on 20.0.0.1). I set up my raspberry as an access point wifi ...
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147 views

cron-apt is always unable to connect to network

I am using cron-apt to keep my Pi up to date. However, since a few weeks, I always get these error messages in the mail, when cron-apt runs: CRON-APT RUN [/etc/cron-apt/config]: Sat Feb 25 04:00:01 ...
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668 views

Can't connect to my Raspberry Pi 3 with a socket

I want to use my Raspberry Pi 3 as a server so I want to connect it via a socket. At first time everything was fine but now I cant connect any more. I get this error: ConnectionRefusedError: [...
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303 views

localhost Apache Very Slow

I have my RPi set up as an Apache2 Webserver. When I curl to localhost with my network cable unplugged I get a response in <1s However, once I connect the network cable - the time for response ...
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1k views

Getting Connection timeout error while connect to Raspberry pi from laptop through SSH

My RPi is running rpi_pisces_r3. I am trying to get SSH setup. I have connected the RPi to the router through LAN and from router to laptop via LAN itself to establish connection between RPi and ...
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76 views

How can I limit WiFi scanning on RPI3 to single channel?

I am writing an code where my Pi is taking lot of time scanning on all channels. I have configured all my routers to same channel to save time. How can I limit my Raspberry Pi to scan all the routers ...
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563 views

Properly run a script when interface connects / reconnects to network on Jessie

I got two internet connections... second one doesn't work without routing changes... other thing is that one user has routing through one connection, and other through other... so I need to apply ...
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232 views

Connect 2 compute modules with networking

I've recently acquired 4 Raspberry Pi Compute Module 3's. I plan to develop a Circuit board that has built in networking, to allow both compute modules to talk to one another across a local network. ...
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2answers
2k views

how to setup pi to switch between two wifi connection if one is not working?

I have two wifi enabled ADSL modems connected to internet from two different ISPs. At times one of the line may go bad and I just connect to other wifi connection manually to continue the work. Is ...
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7k views

Pi as NAT router - Routing is not working

I'm following this helpful guideline on using a Pi as a router. I have a Pi 3 with Jessie Lite. The AP function is working well, but the NAT routing does not work. Any devices connected to the LAN (...
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60 views

Internet connection not shared with Raspbian

I have been following the same tuto as this one Sharing the Pi's WiFi connection through the Ethernet port. I have a very similar setup. My phone hotspot providing the internet. My Pi connects ...
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1answer
64 views

User friendly interface to network settings

Right now, my team plans to deliver configured Raspberry Pi machines to our clients' homes so we can ssh to them. The only problem is that we don't have their home Wi-Fi SSID and password until we get ...
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0answers
102 views

Create local wifi network to connect my tablet with RPI

I want to create local wifi network using RPI so that my Android tabled can connect to RPI using wifi to exchange files with RPI (sftp). Previously I tried to use simple mtp but somehow it does not ...
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400 views

Pi 3 802.1x secured Wi-Fi

My school's Wi-Fi is 802.1x with username/password security. I just installed the OS on my PI 3, and after booting up it sees this network, but for some reason it is greyed out. All other networks it ...
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473 views

How to share PPPoE connection via WiFi?

I build wifi router for my house in the countryside. I only can have internet via wireless so I buy USB grid antenna and connect on PI and made a bridge to internal antenna. USB antenna is connected ...
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142 views

Routing problem

I'm searching for a solution for what I consider a simple routing problem but I can't get my head around it. It's about 3 pi's. The first one works as an accesspoint (I call it #1), the second one ...
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3k views

ssh_exchange_identification: read: Connection reset by peer

I have been successfully SSHing into raspberry pi from my computer terminal, which are both on the same LAN and connected to router with LAN wire. But today, I am getting following message. ...
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0answers
337 views

How do I connect my RPi to university Wifi?

I have changed the /etc/wpa_supplicant/wpa_supplicant.conf using tutorials on the web. But no connections. I am using a Pi 3.
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990 views

Cannot use iw scan command

I'm connected to my pi using ssh via ethernet. I connected an Alfa AWUS036NHA network adapter to it and when I attempt to use command sudo iw dev wlan0 scan I get the following error command failed:...
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804 views

u-Blox SARA and ModemManager

I have a u-Blox SARA-U270 device connected to a Raspberry Pi 3 via UART GPIO pins, that I am trying to use for a 3G connection as a backup. I would like to manage this via NetworkManager/ModemManager ...
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0answers
220 views

Set up a VPN server that reroutes all traffic

I am on mobile so sorry if this question is asked before. I have a Raspberry Pi 3 and would like to do the following: It runs a service for VPN server using commonly used protocol by Windows. Then ...
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0answers
221 views

dhcp takes so long to obtain IP

on RPi3 I'm running Raspbian Jessie Lite. I configured the network to use dhcp on WiFi. It works but it takes very long time to get the IP, ofter over 30-40 secs! Usually my PCs, phones and other ...
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142 views

How to test performance of pi as a wifi access point?

EDIT I run the pi (either a pi 2 with external wifi dongle or pi 3) as servers and WAP for a local server project (no internet connexion involved here). I have noticed that the performance of the pi ...
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1answer
753 views

Network ping Problem

I recently bought the Powerline, so like this I can transfer Internet via the electric cable line from the wireless LAN router to another place where the wifi is not covered. In this last I connected ...
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367 views

My system keeps locking me into safe mode and boots directly to root shell

Help! I keep getting boot error on my RPi and being locked into safe mode only having access to root shell and losing network connectivity! It is the forth time this happens, the first time I have ...
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4k views

Raspberry pi connect eth0 and wlan0 simultaniously

I am using a raspberry pi 3 with eth0 connected to a router with no internet and wlan0 connected to a router with internet access. i want both the interfaces up. but right now only eth0 is up. I ...
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981 views

Remote restart after -bash: fork: Cannot allocate memory

I am running Raspbian on a Raspberry Pi which is located in a remote location. I use Putty to connect to it via SSH. I can connect fine but when I try to run any command I get the following: -bash:...
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918 views

Missing pand command: which package does it belong to?

I'm trying to setup a PAN through Bluetooth with my Raspberry Pi 3. Many guides available on the internet suggest to use the pand command but whenever I run it I receive a command not found error, ...
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115 views

rPI access point devices can't see upnp devices, but can access by ip. Missing iptable or incorrect interface setup?

I posted yesterday, but forgot my login, sorry guys :( I setup a basic wireless access point to access my ethernet network from my wifi devices not near it. I can access devices by ip just fine, but ...
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852 views

Get device names of connected clients to the router on Pi

Is there any way to get the names of all the devices connected to my WiFi router (Asus RTN13UB1) on my RPi. My Pi will be wireless-ly connected to the same router.
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250 views

ifup wlan0 error messages with Edimax EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

I have a Raspberry Pi 2 running Jessie. root@raspberrypi:/etc# cat os-release PRETTY_NAME="Raspbian GNU/Linux 8 (jessie)" NAME="Raspbian GNU/Linux" VERSION_ID="8" VERSION="8 (jessie)" ID=raspbian ...
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72 views

Can only ping through access point, no browsing

I'm using a Pi with a 3G dongle, and sharing the internet connection with the connected LAN-devices. That's working well. Now I want to add an access point to the network; a standalone device as I ...
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642 views

Is there a library for neural networks that works with the Pi?

I have a few Pis lying around and have been planning to learn about neural nets for a while. So far searching on google hasn't turned up many promising results. Has anyone tried? Are there libraries ...
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925 views

Does (raspbian) automatically renew DHCP lease when there is a problem?

For some reason my pi 2b Doesn't renew it's DHCP lease when something goes wrong. I have to restart it or manually reconnect to the wifi. I don't like doing that because it's supposed to be a '...
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228 views

Aircrack monitor mode disconnects other dongle from Wifi

I have a setup with a Raspberry Pi with two wifi dongles -- one is the Canakit Ralink 5370 dongle that supports monitor mode, and the other is an Edimax EW-7811Un adapter. iwconfig: wlan0 : Ralink ...
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2answers
237 views

Pi can't find Wifi Dongle Upon Turning On/ Rebooting/Ifup

I'm having lots of trouble getting my Raspberry Pi wlan*'s to work. I already have several Raspberry Pi 2's that work perfectly with the exact arrangement I'm about to describe, but this one I just ...
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0answers
60 views

Adhoc ports unavailable

I have created an adhoc network on wlan0 for my RPi using isc-dhcp-server to assign ips. This seems to work and I can connect from ubuntu and ping my RPi, however i can not SSH or access my remote i2p ...
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200 views

Raspberry PI Debian multiple network interfaces WiFi and LAN

I have an PI2 with an USB WiFi adapter, and want to set it up with both wifi and fallback to LAN cable, but can't make it work. Is there something wrong with my setup... When I boot with the LAN ...
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214 views

Setting Raspberry Pi Zero to access multiple routers

My Pi Zero has a USB WiFi Adapter attached. I want it to automatically connect to my home wifi network using a static IP. When I take it out and about... for walks, or whatever... I want to have it ...
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293 views

Ad-hoc WLAN configuration with 2 adapters

I have a Raspberry Pi 2 Model B configured to work with two different Wi-Fi USB dongles. The first one (wlan0) creates an ad-hoc wireless network using hostapd, while the second one (wlan1) should try ...