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Questions tagged [802.11ac]

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

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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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15 views

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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82 views

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

I am sure this is a very simple, tedious question. Apologies. I have a tri-band router 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 ...
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2answers
36 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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42 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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1answer
240 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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1answer
117 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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45 views

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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1answer
102 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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51 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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3k views

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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1answer
102 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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2answers
85 views

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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1answer
30k 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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1answer
89 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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292 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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1answer
1k 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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1answer
719 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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0answers
37 views

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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0answers
47 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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2answers
1k 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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2answers
170 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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1answer
696 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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2answers
221 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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1answer
94 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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0answers
148 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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1answer
125 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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0answers
446 views

Can I connect Wi-Fi 1 km away using 802.11ac? [closed]

I would like to make a wireless network link at a distance of 1 km. Can I connect two devices at that distance if both support 802.11ac? Edt:Is it possible to connect if distance is 500 meters?
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2answers
5k 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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2answers
8k 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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2answers
464 views

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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1answer
3k 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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0answers
196 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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1answer
4k 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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1answer
180 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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1answer
146 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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1answer
114 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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0answers
359 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
578 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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1answer
10k 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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1answer
8k 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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1answer
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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1answer
864 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 ...
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1answer
555 views

Can a device with a 802.11g NIC see a 802.11ac/n router?

I'm contemplating upgrading to an 802.11ac router. My current router is 802.11n/g. All the wireless devices I have only have 802.11g NICs and can not even see the 802.11n band. If I upgrade to the ...
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2answers
467 views

Wireless router with both 'AC' and 'N' clients on the 'AC' 5GHz SSID? Is there an impact on speed to either N or AC clients?

My ISP now supports up to 300Mbps down. I would like to buy and configure a wifi router that can offer this speed via WiFi, but can also support max speeds on legacy N clients with no impact to the ...
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2answers
624 views

Any realistic advantage of 802.11ac over 802.11n for a regular home connection?

I am using a 802.11ac Asus - 802.11ac Dual-Band Gigabit Wireless router. Don't have any complains yet but does it really matter to go from a $90 802.11n router to $200 802.11ac router? In theory, max ...
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1answer
91 views

Why would a router not connect on its fastest mode?

I have an Airport Extreme router that can connect to devices on 802.11ac mode, if the devices support it. My MacBook Air, which supports ac mode, seems to be connected on n mode. Here is the ...
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1answer
2k views

Is there any any 802.11AC card that will work in X230?

Lenovo Thinkpad X230 BIOS embeds a whitelist of WLAN cards. If a card is not in the whitelist, it is rejected by the laptop. Are there any 802.11ac cards that would work on Lenovo Thinkpad X230?
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3answers
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802.11ac Poor Performance

I have a relatively simple wireless network setup. The access point is an Asus RT-AC68U which supports 802.11ac. I have two USB wireless adapters: both are Asus USB-AC53's which also support 802.11ac. ...