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Questions tagged [wifi]

WiFi is a layer 1 and 2 networking protocol for wireless communication between devices. It is typically used in local networks for client access, but can also be used in point-to-point network links. WPA is used to encrypt traffic.

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Route53 Issues on Wifi

I'm having issues accessing my route53 domains on wifi I have records pointing to my internal ips which work while plugged into my network but unable to access them on wifi, i can get to them via IP ...
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Can't connect ssh via wireless interface but t works using eth0

Suddenly I can't connect via ssh to a server using my wireless interface but I can do it using the eth0 interface with a cable connected directly to my router. From my wireless interface I got: $ ssh -...
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Two different sites with one domain

This the scenario I have two sites The sites are connected together by a P2P wireless connection Windows Servers 2012 on both sites acts as a domain controller. We have one domain for both DHCP ...
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Raspberry Pi 1 WiFi adapter receives 2 dhcp addresses

I have a raspberry pi 1 with a USB WiFi adapter. The wlan0 interface has 2 IP Addresses and i dont know why: pi@smart-meter:~ $ ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state ...
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Setting up an Access Point, Raspberry Pi, and Laptop to serve a website in a classroom. "The internet in a suitcase" [closed]

Our trainers experience bad internet connections at some schools. I would like to provide them with a "mobile" (as in take it on the train) version of our platform running on a laptop, which ...
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Tplink router on wisp mode with zte 4g lte modem

Which is better for 8 users doing voip , watching youtube videos, browsing and playing multiplayer online games at a time ? Beacon interval 100/dtim interval 1 B.i. 200 / dtim 1 B.i. 50/dtim 4 B.i. 50/...
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Error code 0x90090331 - Explicit EAP Failure

Can anyone direct me to a reason for an Explicit EAP Failure with Error Code 0x90090331? Evidently, the error code is not on the internet. I have been troubleshooting some enterprise wireless issues ...
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Ways to log exact wifi connection establishment issues

I have recently started working with a museum (UK) who's 1-year-old Cisco wifi setup has been experiencing connectivity issues from day 1. Essentially a significant proportion of devices (both in-...
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Ubuntu server can be accessed only after ping

and tank you in andvantage for any suggestion, I hve ubuntu server (20.04) on lan, but I can access to it (ssh or web-server apache) from other pc (windows 10) only if I do a ping from server to ...
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Networking - LLC XID flood between two devices

I have multiple devices that working with this system: Linux Variscite imx6 Linux 4.9.88-10180-gaaecf09-dirty #2 SMP PREEMPT Wed Dec 26 14:04:36 IST 2018 armv7l armv7l armv7l GNU/Linux with WL1837 ...
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Configuring IP and network address for Windows Mobile Hotspot [closed]

I'm using Windows Mobile Hotspot on my laptop to share its Internet connection with other devices. It sets up a DHCP service, using 192.168.137.1 as the gateway address, and leasing out addresses on ...
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WIFI : distinguishing client by OS

We have differents wifi clients Some of them on Android/Apple phones, others on PC Windows. Wifi is authenticated by NPS and we have a DHCP in wwindows server. We do not trust phone. We want to put ...
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Laptop asking for "action needed" on NPS Computer auth WiFi connect, despite valid Server Thumbprint

I have configured computer authentication on WiFi connect to company network, using the microsoft nps server, group policy certificate auto-enrollment and group-policy wifi config. Has been working ...
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Which wifi adapters can create/host 802.11ac?

I'm trying to find the keyword which proves/states that an USB wifi adapter can act as an 802.11ac access-point. So far I have tried 3x 802.11ac usb adapters and the internal card on a Pi4. All have ...
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Tracking Down Source of Network Instability

If the issue happens, it happens at 10am, for about 1minute between onset and return to stability. It does not happen every day. During the minute, pings go through the roof and packets start to drop,...
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Bridge wifi to vmbr

Here is my networking setup: The system is running Proxmox (Debian-based) so it has a bunch of VMs. The default bridge of the system is vmbr0, connected via ethernet to a network with the 192.168.86.0/...
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TCDump Missing packets

We use TCPDump on an RPI to capture WiFi signals from nearby devices as a means to get an estimate of number of people. We have notice the on "normal" days the numbers are reasonably ...
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multiple issues after joining domain over remote site to site tunnel to another corporate envirement

I'm facing issues with multiple users after joining them to domain over site to site tunnel, the company i'm joining its users has an Active directory which has their accounts to connect to corporate ...
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Rename a Windows network Adapter based on Description of the adapter

We need to rename the network adapter for a number of devices, however the adapter name can be different on different devices. The identifier is the description of the adapter so wondering if anyone ...
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Linux/Android devices connected by WiFi require iptables to add NEW state in FORWARD chain for external interface to connect to internet

Iptables rule for external interface (ens33 has a public IP): iptables -A FORWARD -i ens33 -m state --state ESTABLISHED,RELATED -j ACCEPT allows access to internet for all computers connected to ...
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How to connect device with no web browser to RADIUS WPA2 Enterprise wifi network

I am trying to connect a Bresser 5-in-1 Weather Station to a workplace's wifi network, which uses RADIUS WPA2 Enterprise security. From a laptop or smartphone I can connect to the network and then ...
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Is it possible to implement a TCP/IP network over DECT?

I am working at a site where DECT is implemented on Mobile Devices, and I am wondering if it is possible to setup a TCP/IP network using DECT as the data transmission layer.
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Communication between network interfaces in different subnets LEDE openWRT

i'm using TP-Link MR3220v2 with its Openwrt firmware. what I would like to do should be simple, but I am not succeeding. i have 3 devices in two different subnets and i would enable communication ...
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Is there a configuration to cache wifi passwords only for logged in users?

I am currently setting up new laptops in our system. All users have a specific group in AD with different credentials for WiFi and login. The issue is that in order to connect to the domain controller ...
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How to prevent DHCP IP starvation attack on a wireless interface?

It's probably possible to go to any restaurant/cafe/bus with public Wi-Fi Hotspot and flood it with DHCP DISCOVER / REQUEST packets. If this network is created by a router that works as a DHCP server, ...
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Mikrotik Wifi on Android keep on disconnecting

My company recently purchased a few Mikrotik hAP Mini. These units are used for Site to Site VPN. The first unit I setup manually worked flawlessly. I then exported the configuration to the second, ...
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Fortigate and RADIUS Wifi authentication for domain and non-domain devices

We're setting up RADIUS authentication for wireless network connections through a Windows Server 2012 R2 (NPS). We have to allow both domain computers (registered in Active directory) and non-domain ...
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Is there exist in a market some usb->ethernet->wifi combo dongle?

I have a USB-ended device which I want to connect to Enterprise Wireless network (EAP/TLS via FreeRadius). Is there any device in a market which can act as a WiFi client with EAP/TLS possibility? Now ...
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Wireless EAP / Freeradius, is there a way to check Mac Address in LDAP?

So we have EAP-PEAP over MSCHAP working. What I'd like to do is have a MAC Address check, for the purpose of making sure people aren't putting their credentials into random devices. I know SCEP would ...
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SSH Connection loss when roaming to an AP with a different OUI

I have major issues with a device (Ubuntu 20.04 installed) in a warehouse with multiple access points. I am frequently losing the SSH connection. Investigating the matter, I found out that I lose ...
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Connecting to Multiple cameras which each acts as a WiFi Access Point [closed]

I have 7 cameras each acting as a WiFi Access Points and I can not change their configurations. Camera1 SSID: camera1, pass: 1234, it has static IP: 192.168.42.1 and built-in DHCP server Camera2 SSID: ...
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Is it possible to block dhcp traffic using iptables?

I have two devices with embedded Linux. One of them (machine A) has two network interfaces: eth that is used to connect machines together and wlan interface to connect to router via WiFi. The second ...
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Set custom vendor extensions on Cisco Wireless Lan Controller

Is it possible to set a custom vendor extension on a Cisco WLC? (currently 8.5.161.0) In particular, I'm interested in setting Microsoft's Network Cost IE on our wireless network: https://docs....
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Web pages don't open shortly after switching between two Access Points connected to a single router

Here is my network topology: The router is also a modem that connects me to the internet. Wifi is disabled on the router. Access points have different SSIDs. When I stay connected to a single access ...
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DHCP issues in company network

I'm experiencing some issues with some DHCP clients, sometimes they cannot get DHCP leases. My company has a Windows Server 2016 DHCP server with a failover twin server, both are also domain ...
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How do Wireless Security Protocols work? [closed]

For example, my home router use WPA2-AES as wireless security protocol. When I access a webpage, traffic coming from my desktop to home router will be encrypted with WPA2. However, when my router ...
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Persistent storage in captive portals or mobile internet while wifi connection without internet

I have a little problem here: I want to create a WiFi network, which does not provide internet access. The WiFi network should only serve one website to the user like in a museum. That's pretty simple ...
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How to identify server providing wireless SSID name [closed]

First, a lot of background so that you'll hopefully understand the reason for the question. We had a catastrophic failure in our network - a surge that took out a couple of systems' network interfaces,...
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Mysterious Wi-Fi Direct Broadcasts

At my company, or networking and info sec teams noticed mysterious Wi-Fi Direct broadcasts on our network from our corporate laptops. I'm currently looking into this issue to figure out what's causing ...
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Abnormal port request on Linux system

I am using Debian Buster and Android 9. Checking the network activities I noticed that it scans many ports. How can I determine who is the cause or if this is normal? I connect the mobile phone to the ...
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How can I measure the speed between laptop and wireless access point?

How can I measure the speed between my laptop and the wireless access point it’s connected to? Notes: when measuring the speed of the general connection to the internet, I’d use something like ...
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2 votes
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WiFi 6 2x2 vs WiFi 5 4x4

I am in the process of an infrastructure build out and I’ve narrowed down my AP selections between two. One being a 802.11ac 4x4 MIMO and the other being a WiFi 6 (802.11ax) 2x2 MIMO. Does anyone have ...
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How to connect Brother MFC-L2720DW from the laptop or connected by wire or through Wi-Fi?

(I have very low experience with local networks. I need to connect the shared printer...) The Brother MFC-L2720DW printer allows 3 ways to print: through USB cable, through wired LAN (patch cable, ...
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Wireless clients connected to the repeater not getting IP addresses from the DHCP server

I have a Mikrotik wifi router and an Asus wifi router configured as wireless repeater connected to the Mikrotik. The connection between Mikrotik and Asus is through wifi. Asus is getting IP address ...
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How can I use a LTE interface inside a docker container?

For my customer, I have to setup docker containers on separate machines that run various services on various physical links. I cannot use "host" mode for my docker containers. So far, I have ...
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Use ethernet port for smb share transfers, but smb should still be accessible over wifi [closed]

I'm pretty new to Linux networking and I'm not sure how to fix a file transfer issue I have. I have two Raspberry Pis. One is running Raspberry Pi OS and the other is running OSMC. Both are connected ...
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Access a node from different subnet

I've made a web-application which I installed on a dedicated server connected to our company's LAN. I just have one problem. All the nodes on LAN have 192.168.138.x subnet mask. But wi-fi access point ...
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Why does setting MTU 1452 solve Internet problems and how to fix root cause?

In our church we get Internet uplink from a friendly neighbor’s WiFi. At first everything seemed (at least) fine but since some weeks general “Internet stability problems” increased and since approx. ...
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Capturing IEEE802.11.x auth and capabilities data with tcpdump?

I'm troubleshooting some issues with my wireless network (OpenWrt 19.x and mobile device) and I came across this: https://dot11.exposed/2017/09/20/violation-of-802-11-standard-intel-wireless-cards-...
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Unable to locate package firmware-b43-installer (Debian)?

0 I have a laptop that I installed Debian(buster) onto that has no GUI also known as (CLI). But for some reason, I can't install firmware-b43-installer it comes up with this error E: Unable to locate ...
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