Questions tagged [802.11ac]

For questions relating to the use of the IEEE 802.11ac wireless networking standard

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Fedora 32/hostapd; WiFi AP 5Ghz Frequencies, no IR issues

The problem is the same as the title. The device appears to be operating normally. # lspci | grep -i "ath" 04:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network ...
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1answer
34 views

What is AC/N mixed mode - in respect of dd-wrt on the 5 gig band?

I'm configuring an ASUS AC1900 router with dd-wrt. When configuring "Wireless Physical Interface wl1 [5 GHz/802.11ac]" interface, there is a dropdown for Wireless mode, which lists, among other ...
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261 views

Can a Wifi Adaptor of type 802.11ac connect to a 2.4 GHz network?

Can a laptop computer (e.g. HP 14-ck2330ng) with a Wifi Adaptor of type "802.11ac (1x1)" connect to a 2.4 GHz WiFi network? Or only a 5 GHz network?
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Can a 802.11ax device use 1024QAM of my 802.11ac router?

I have an Asus Rapture GT-AC2900 802.11ac router and it is enabled for 1024QAM. Can I use this feature if I connect a 802.11ax device?
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297 views

WiFi locked at 1.3gbps with 1.7gbps Intel 9260

Anyone know if Intel 9260 adapters (2x2 160mhz wave 2) are gimped on non-Intel CPUs? I'm only able to hit 1.3gbps (half-duplex 650mbps effective) on a Ryzen laptop (HP Envy x360 15z) and Ryzen ...
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68 views

Can an 802.11AC router become an 802.11AD router? [closed]

I recently came across an advertisement for an asus 802.11AX router and I wanted to see if its possible to upgrade a router to AX being that they share the same frequencies. Whats stopping a company ...
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701 views

Do I need to replace WiFi antennas in my laptop when upgrading the WiFi module?

I have a Packard Bell EasyNote LM85 laptop that comes with an Atheros AR5B95 WiFi module (mini-PCIe, 1x1, marketed as 802.11n (actually b/g for all practical purposes, maximum connection speed 54Mbps),...
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1k views

Can't reach advertised speeds on ASUS USB-AC56

Before you read I apologize in advance for the mile long post, it's only so long because of the pictures. I recently purchased an ASUS wireless adapter to replace my TP-Link wireless adapter. After ...
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358 views

Is it okay to mix 802.11n and 802.11ac access points?

My parents' house currently has a single 802.11b/g/n/ac access point. It covers about 2/3 of their first floor and 1/3 of their second floor. The rest is lacking signal. They want me to close this gap ...
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AC WiFi: performances are good from Internet speed but poor within the LAN itself

Recently I put a Netgear A6210 USB WiFi adapter on my laptop to connect with my ISP's 802.11ac 5GHz router. The router is alleged to have a speed of 1,734 Mbps, but the Netgear shows its maximum link ...
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104 views

How can I communicate between 802.11ac and 802.11g within the same home network?

I have a tri-band router, an Asus RT-AC3200, with one 802.11g network and two 802.11ac. My PC is connected to one 802.11ac, when I try to SSH to any device on the 802.11g I cannot connect. If I ...
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414 views

PCIe Wireless Card vs. USB dongle [closed]

My laptop's wireless card uses the older wireless 802.11n protocol, and I would like to upgrade to the 802.11ac protocol. So, I can either use a new mini PCIe wireless card or use a dual-band wifi ...
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80 views

Why does 802.11ac TX speed on my Mac drop dramatically until I disconnect and reconnect

I've recently got a new wireless router (TP-Link Archer VR400, latest firmware) which supports 802.11ac 5GHz 80MHz. I am literally 3 meters away from the router with perfect line of sight, and I live ...
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726 views

802.11ac Router and Adapter Use 802.11n

I have a Linksys WRT1200AC running OpenWRT in 5GHz mode (the 2.4GHz one has a different SSID) with 80MHz width and a TP-LINK Archer T8E AC1750 which connects my computer to the router. They're both in ...
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645 views

How MU-MIMO handles TxBF and transmitting multiple streams together?

I have gone through a lot of references and most of it told like atleast 2 antennas are required to do TxBF, and with two different antennas either we can do TxBF by transmitting same streams or ...
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Troubleshooting poor Wi-Fi performance of one particular device in a home network

I have a problem with one particular device, a nettop. It has a RTL8821AE adapter (1x1 2.4/5 GHz 802.11ac). Pinging the Wi-Fi router from this nettop often looks like this: Pinging 192.168.31.1 with ...
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336 views

How often will an unassociated STA scan the network?

Consider an 802.11 STA that is currently unassociated. While unassociated, how often will it scan the network (passively or actively) to determine available APs? There is enough information about the ...
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148 views

Understanding router specs correctly?

I'm trying to better understand router specs. Let's say a user has 100Mbps speed from their ISP. If they have 2 devices attached via WiFi 802.11ac, it seems like AC1200 is more than adequate to meet ...
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How to run 0bda:a811 Realtek USB WiFi adaptor on Ubuntu Trusty

As my onboard WiFi Chipset (Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b]) does not support the 11AC-standard, according to my research, I bought an USB-Adapter. ...
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198 views

Edimax AC1200 supports 802.11ac but only connects via 802.11n; why?

My laptop can connect to my home network using 802.11ac just fine. However, according to Windows, my Edimax AC1200, only connects to the network via 802.11n. This is despite the fact that the ...
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Is 802.11ac channel sounding ever done both ways?

My understanding is that for transmit beamforming in 802.11ac the transmitter sends a channel sounding packet (the "null data packet"), the receiver uses this to calculate the channel state ...
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71k views

Explanation of advanced settings available in the WiFi adapter driver properties for RTL8812AU?

In the driver properties for "Realtek 8812AU Wireless LAN 802.11ac USB NIC" there is an "Advanced" tab that appears to have some settings which are new to me that are specific to WiFi AC communication....
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110 views

300 Mbit/s network connection via 150 meter radio/wlan or 300 meter cable

I am searching for a possibility to send 300 Mbit/s net (as opposed to gross) over a distance of 150 meters. Are there any technologies available for private households and reasonable price? I would ...
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407 views

Connection and bandwidth problems with wireless AC tri-band router

I recently bought a new router (Netgear Nighthawk R8000 AC3200) to use in tandem with my modem and has DD-WRT installed on it since the stock firmware limited my connection to 30 mbps. However, the ...
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2k views

antenna configuration of wireless card in MacBook Pro?

Does anybody know what is the antenna configuration of wireless card in MacBook Pro? I wonder if it is 11ac 1x1, 2x2 or 3x3? MacBook Pro (Retina, 13-inch, Early 2015) Interfaces: en0: Card Type: ...
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1k views

How to get Gigabit wifi connection in my house?

So, I have switched to a gigabit internet connection at my house. Through the internet provider's modem, I consistently get between 800-950 Mbps when I check. But, through the wifi on the internet ...
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Copying files Windows 8 laptop over Wifi speed going up and down rhythmically

Whenever I copy a file over Wifi (ac) from my Windows 8 laptop to another computer (NAS) on my local home network I'm now constantly getting the same rhythmic speed pattern where the speed seems to ...
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50 views

Not Able to Connect to Router using WiFi

I have a laptop which is a few years old now. We have recently got a new Netgear ADSL2 modem/router for work which says on its box that it has two WiFi interfaces: 802.11n 2.4GHz (3x3) & 802.11AC ...
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3k views

Slow wireless speeds with WiFi card

Using Linksys Gigabit AC5400/EA9500 router with Intel AC7260 Very similar issue with this post Context here: I'm running into the exact same problem as per the link above. However, I did turn my ...
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247 views

What is a 802.11ac adapter?

I'm using the WRT 1900 ac router to get 802.11 ac, but I'm not able to get the ac. I make a lot of things that they suggest on the web, but I'm still with 802.11n. According to Linksys : What is ...
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1k views

Is it possible to deauth 802.11ac (5GHz) clients with an 802.11a/b/g/n adapter?

Due to the lack of USB WIFI-adapters that support 802.11ac and packet injection, I'm wondering if it is possible to to use an 802.11a/b/g/n adapter to archieve the same goal on ac. It is not intended ...
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353 views

Do WIFI access points relay transmissions or just facilitate transactions between two machines connected to it?

I'm wondering about the specifics of the way infrastructure Wi-Fi devices operate. I'd always assumed that all data is transmitted to the router, and then broadcasted out to the relevant device. I'd ...
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112 views

Linux box can't see the 802.11ac broadcast

I have a TRENDnet TEW-824DRU with the latest DD-WRT on it. This unit has 2 interfaces that broadcast 2.4 and 5GHz respectively. I also have a usb BrosTrend AC1200. I installed the drivers as ...
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214 views

Speed loss when copying from Mac Book Pro to WD My Cloud over 802.11ac

I am having difficulty diagnosing why my speeds are so much slower using 802.11ac than gigabit Ethernet. When using rsync, my measured speeds over wifi are ~12 MB/s. Using rsync over gigabit ...
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175 views

Is it possible to allow clients of the same VLAN to see each other even if they connect to different SSIDs with the same name?

My home wireless access point is a Buffalo AirStation Pro (WAPS-APG600H), which is a "Concurrent Dual Band Wireless Access Point". It has two bands, labelled 11g and 11a, with an ability to set up ...
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6k views

Why am I not getting full Gigabit Ethernet speed in my LAN?

Recently, I bought a TP-Link AC1750 Archer C7, which has four Gigabit Ethernet ports (800 Megabits each), 1300Mbps 5GHz WiFi and 450Mbps 2.4GHz WiFi. I have connected my PC to the router by an ...
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11k views

802.11ac with a 2.4GHz router

I'm looking to get a new computer for someone and am trying to understand 802.11ac. It only runs on 5GHz according to everything I've seen, so my question is, can it connect to an older router that ...
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Wireless 802.11/ac not working Netgear Nighthawk D700

I have a Netgear Nighthawk D7000 that's about 30ft away and behind two walls. In my desktop, I have a TP-LINK Archer T9E AC1900. I am connected to the D7000's 5G network via CenturyLink's GPON fiber ...
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4k views

Netgear r8000 - 5Ghz network dropped

I've just purchased a Netgear R8000 router. First thing I did is to upgrade its firmware to the latest version. I have turned on the two 5 GHz networks and enabled the SmartConnect functionality. I ...
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209 views

How to connect two different WiFi protocols on same laptop?

I am trying to run 802.11a and 802.11p WiFi on one laptop using shell scripts. I am getting all connections when I am doing "iwconfig" ( all connections means Wlan0 having 802.11p WiFi and Wlan3 ...
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6k views

Which one has the least amount of latency: powerline or 802.11AC?

I want to steam stream from my PC to a stream mini on my living room next to my TV. Right now the latency is low-ish but less than ideal at 6ms. For reference I have the gaming PC wirelessly connected ...
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211 views

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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161 views

Improved speeds for multiple 802.11 a/b/n clients

I'm considering purchasing a wireless 802.11ac router as my current N router only gets around 50Mb download speeds when connected via a laptop with inbuilt N adapter. I've tried this with multiple ...
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125 views

Will older 802.11a/b/g device affect 802.11ac wave 2?

Given the silly number of antennas on the newer 802.11ac wave 2 devices, will older 802.11a/b/g devices still slow down the network? Based on this article, I'm really wondering about that. There ...
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380 views

802.11ac, stuck at 355KibiBytes/sec - weirdly common number?

I have an ASUS RT-AC66U router (802.11ac - 2.4GHz and 5GHz) and an ASUS USB-AC56 802.11ac Wireless USB Adapter. The router firmware is updated, all the QoS nonsense is disabled, and I'm using DHCP ...
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1answer
643 views

802.11ac network setup slowed down

So, for a long time been running on a dd-wrt router, connecting at low 10Mb/s speeds wirelessly, so I decided to give a try to a 802.11AC. So I bought the hardware, set it up, but I'm not happy with ...
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11k views

Can I use a 802.11ac Wifi USB adapter for a 802.11n Wifi network?

I'm planning to purchase an USB Wifi adapter to connect to my wifi which uses 802.11n mode. Can I connect a 802.11ac Wifi adapter to this network or do I need to find specifically a 802.11n USB ...
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16k views

What's the difference between AC600, AC1200, AC<n> wireless network adapters?

I'm planning to buy a wireless PCIe or USB network adapter for 802.11ac but I don't understand the difference between AC600, AC1200, and all other ACs available out there. What does the number mean?
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3k views

What's the theoretical latency of 802.11ac?

Inspired by this slide, I became curious to know the (theoretical) latency of the latest WiFi standard. However Google didn't help. This ppt's 8th slide, compares latency of 802.3 (3000 microsecs) ...
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1k views

What is the point of a 100Mbit router that has 802.11ac Wi-Fi?

I saw a few routers on the market that has 10/100 Mbit speed on cable and a 802.11ac Wi-Fi that is capable for gigabit speed. What you can use that speed when the 100Mbit cable connection will be a ...