IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4, 3.6 and 5 GHz frequency bands.

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Can I reduce AP's network and system load with using 802.11b on 802.11g AP?

One of my customer uses 3 Linksys WAP200 AP. Recently, customer reports that they got low wireless speed(about 500kB/s) and low wireless connection reliability. (That means, wireless links keep ...
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How do older non-MIMO standards like IEEE 802.11a, 802.11b, 802.11g make use of multiple antennas?

Let's say we have a wifi router which supports IEEE 802.11n, 802.11ac with 2x2 or 3x3 MIMO, and is also backward compatible with 802.11a, 802.11b, 802.11g. Given that 802.11a/b/g are non-MIMO ...
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Can I change the Wi-Fi adapter on my Dell Inspiron 15 3542 to get a 5GHz Wi-Fi connection?

I own an Dell Inspiron 15 3542 laptop, which does not support the 5GHz Wi-Fi bandwidth. I want to know if I can change the wireless adapter to a WLAN 802.11AC so that my laptop can connect to a 5GHz ...
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How to tell if I'm using 802.11AC?

I have an ASUS USB-AC53 wireless adapter, with a Netgear 6300v2. The speeds are OK. There is 2 drywall walls separating the computer from the router, and only about 20ft. The signal strength and all ...
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How to calculate “interference weight” between 20MHz, 40MHz and 11ac 80MHz APs?

I want to know how to calculate the "interference weight" in the combination of APs running on different channel frequencies. Lets say I have 10 APs in different operating modes, such as 11a, 11a/n ...
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How to find 802.11 protocol variant, and decipher packet_payload_info in PcapNG files?

I'm building a (Python) parser of PcapNG files created by Wireshark. After reading https://www.winpcap.org/ntar/draft/PCAP-DumpFileFormat.html, I'm having the following problems: I'd like to ...
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Problems with mixed 802.11b/g/n

So my home network is currently set up to be 802.11b/g/n (2.4Ghz, 20Mhz), but I have some issues with it. Pretty much all devices work without any problem, except my phone. The Wi-Fi connection on my ...
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How do I capture 802.11 headers on an AP while not in monitor mode?

I am wondering if it is possible to extract 802.11 frames on a router running OpenWrt operating as an access point. I tried using tcpdump and loading the dumped packets in Wireshark, but I could only ...
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How to configure AAA server and hostapd to support Hotspot 2.0 / Passpoint?

I am trying to setup an independent Hotspot 2.0 network. I am using TP-Link Archer C7 v2 routers as accesspoint. I built and flashed Openwrt 15.05 on router. Built hostapd from source with HS20 and ...
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What's the point of the sending beacon frames with hidden SSID?

In the 802.11 world, if we decide to hide (using NULL instead or not including it at all) our SSID in the beacon frames, the client that wants to connect to our AP should know the SSID and send a ...
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Strange router behavior in airodump

While auditing the security of my wireless network I decided to take a peek at what airodump-ng could display. This is what it outputs: BSSID PWR Beacons #Data #/s CH MB ENC CIPHER ...