Fat channel intolerant wifi

What is enable adaptivity in properties?

It allows you to get greater better signal strength, and thus better throughput, at range. You want it on for both VHT and HT. «Adaptivity» seems to relate to ETSI’s (European Technology Standards Institute’s) adaptive frequency hopping requirements which are mostly for Bluetooth.

What is WiFi adaptivity?

What is Adaptive Wi-Fi? Enabling the Adaptive Wi-Fi feature allows your network to automatically switch between Wi-Fi and mobile data automatically to maintain a stable network connection. ○ If your Wi-Fi signal becomes weak or unreliable, your phone will switch to mobile data automatically.

What is AP mode force?

The difference is that: Access Point Mode allows to share internet from another WiFi Adapter, but, Soft AP mode uses a single Adapter and the same adapter is used as client and access point.

What is roaming sensitivity?

Roaming Sensitivity is the rate at which your device selects and switches to the nearest available point of access, offering a better signal. . Intel products use the term Roaming Aggressiveness, whereas Ralink and some others use Roaming Sensitivity.

Should I set roaming aggressiveness to highest?

Setting your roaming aggressiveness to a higher value will trigger your client device to look for APs more frequently. Your client device will not roam when set to the lowest setting unless it experiences severe link quality degradation.

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39 related questions found

Should I disable roaming aggressiveness?

This can be a problem as it can cause your connection to be interrupted frequently as your computer authenticates to another AP. Having the aggressiveness set very low, or disabling it, can cause your computer to ‘stick’ to one AP, making it difficult to move around and maintain a connection.

What does AP mode mean?

AP mode — this is the default, most common mode for all wireless routers, also called Infrastructure mode. Your router acts as an central connection point, which wireless clients can connect to. . Use this mode, e.g., to make the router act as a «WLAN adapter» for a device connected to one of its LAN Ethernet ports.

What is AP connection mode?

The AP mode is short for Access Point mode. It is one of the most common mode for all wireless routers. When Yardian is under AP mode, it means that Yardian acts as a wireless router with SSID. Your cellphone will be able to connect to Yardian when it is under AP mode.

What is AP mode and client mode?

In AP mode, AP is the DHCP server to the home or small office network and connects multiple PCs to the wired network. In Client mode, wireless client is assigned an IP from the associated AP, and is able to access to wired network through associated AP.

What does fat channel intolerant do?

Fat channel intolerant: When enabled, the client informs access points that it doesn’t support 40 MHz channel-widths in the 2.4 GHz band. 20/40 Coexistence: Enables coexistence techniques, which prevents the access point from using 40 MHz wide channels if it will interfere with any other detected networks.

Should I enable 40MHz intolerant?

1 Answer. No, you shouldn’t disable that setting if any of your client devices use Bluetooth and sometimes need to use 2.4GHz Wi-Fi. What Netgear calls «20/40MHz coexistence» is probably just the required respect for the «40MHz intolerant» bit that some clients set.

Should I enable Xpress TM technology?

Broadcom’s Xpress Technology is one of the older performance-enhancing WiFi technologies, designed to improve wireless network efficiency and boost throughput. . It is not recommended to use Xpress in newer network environments (802.11n/ac), and with gaming, as any repackaging of data can introduce some delay.

What is enable adaptivity WiFi?

It allows you to get greater better signal strength, and thus better throughput, at range. You want it on for both VHT and HT. «Adaptivity» seems to relate to ETSI’s (European Technology Standards Institute’s) adaptive frequency hopping requirements which are mostly for Bluetooth.

What is the WiFi calling?

WiFi calling is a feature that lets you make voice calls over WiFi instead of using your cellular connection. It relies on IP technology that connects your call through the internet instead of a cell tower.

What is WiFi power saving mode?

This Wi-Fi power-saving mode is a built-in mode that allows devices to save power by analyzing the data usage pattern with time and then making sure that the Wi-Fi doesn’t drain too much battery of the device in question.

What’s the difference between router mode and AP mode?

Router mode is for linking the Internet and a private (LAN) network together. AP mode is for connecting to an existing LAN network.

What is AP mode on a WiFi extender?

Access Point mode is when you want to connect the router up to an Internet source via cable. . Using Access Point mode is ideal if you want to extend the WiFi range, but the router you’re using to extend it isn’t too far away from the main central router.

What is AP mode vs Station mode?

Access point (ap) is the thing you connect to, e.g. wireless router. wireless/mobile station (sta) is your end user device, e.g. your phone.

How do I use AP mode?

1. Launch a web browser from a computer or mobile device that is connected to your NETGEAR router network.
2. Enter your user name and password. Note: The default user name is admin. .
3. Select the ADVANCED tab.
4. Click Advanced Setup > Wireless AP. .
5. Select AP Mode. .
6. Click Apply.

What is AP mode on camera?

Camera access point mode is a connection mode for connecting the camera directly to each device via a wireless connection without using an access point.

What is AP mode vs repeater mode?

As an access point uses Ethernet to connect to your router, you can circumvent your internal network, connect it to your gateway router and have traffic exit directly. A repeater uses wireless so if you have a busy network, it may contribute to congestion.

What is the best roaming aggressiveness in WiFi?

Lowest: The WiFi adapter will trigger roaming scan for another candidate AP when the signal strength with the current AP is very low. Medium: Recommended value. Highest: The WiFi adapter will trigger roaming scan for another candidate AP when the signal strength with the current AP is still good.

What WiFi mode is best?

If you want maximum throughput and minimal interference, channels 1, 6, and 11 are your best choices. But depending on other wireless networks in your vicinity, one of those channels might be a better option than the others.

What does your connection is roaming mean?

Roaming is a wireless telecommunication term typically used with mobile devices, such as mobile phones. It refers to the mobile phone being used outside the range of its home network and connects to another available cell network.

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Does anyone know the technical details behind Intel’s 5100 AGN client device setting called «Fat Channel Intolerant» ? Their website is poor on technical details. In brief, it says «it communicates to surrounding networks that the Wi-Fi adapter is not tolerant of 40 Mhz channels in the 2.4 GHz band». Elsewhere it mentions being incompatible with 802.11n — duh. Is this merely the way of telling the adapter to only make 20 MHz connections, or is it some broadcast that tells nearby neighbors not to use it also ? My guess is the former — but the opposite would be good to know about.

My understanding is setting that flag does both — tells the card not to use 40 MHz channels and also begs the neighbours not to use 40 MHz channels as well. I say beg because I did some poking around on some Aruba gear at my place and it looks like ArubaOS is set to ‘Honor 40 MHz Intolerance’ by default but it is just a check box [url=http://www.flickr.com/photos/simplywifi/5798295274](see screenshot here)[/url] so anyone could simply decide not to honor that setting at any time. I can only assume other enterprise vendors have a similar toggle. Not sure about home gear though. Seems like a good option for 2.4 GHz in theory, but if people can just turn it off I’m wondering how effective it really is. In case anyone is interested, here is a screenshot showing the 40 MHz intolerance bit in Wireshark — [url=http://www.flickr.com/photos/simplywifi/5797819731](Intolerance bit not set)[/url]

Cool thread. WLANMAN, why wouldn’t an agn card be n capable? I just did a quick search on 5100AGN . looks like an old intel card that was designed during pre-n era. is that the one you’re referring to? Looks like 5300 is the newer card, post n ratification. I agree with you both that it does seem like a smart option, to be able to request no 40 MHZ channels for 2.4. (Of course, why not just run 5GHZ and be done with it.) But «not allowing» doubled channels on the device itself at 2.4 almost seems useless to me; who would want to do that anyhow, and is INTEL just proecting people from themselves? =) But the idea of it being able to tell neighbors seems it might be useful. of course if I were running a 40 MHZ network and some yahoo card was able to bump me down to 20 I might be irritated. I am curious about exactly how this feature works now, what it specifically does. Thanks for the screen capture btw SimplyWiFi. Interesting that the bit’s set by default. I wonder if any of the SOHO devices address this option. Something more *sigh* to research! =) Good stuff! Here’s the intel whitepaper I saw for INTEL’s cards: http://www.intel.com/products/wireless/adapters/5000/index.htm?wapkw=(5100)

SeaLass, Setting the «Fat Channel Intolerant» and at the same time allowing your own device to allow 40MHZ is what would be incompatible. Which Intel seems to agree with. It would definitely not be «playing nice» to run 40MHz yourself, and not let your neighbors to do the same. If you are running 40 MHZ channels in a sea of 2.4 GHZ 20 MHz channels you’re definitely being a bandwidth «road hog» — that is, if you are not following the rules. I live in an area where several people are running «pre-n» AP’s. In this case Belkin. They defineitely don’t «play nice», and stomp all over everyone elses 20MHz wide comms. They don’t seem to care what is going on around them.

At the current time the WFA says «Wi-Fi CERTIFIED n products are configured to operate using 20 MHz channels by default, [u]and must employ coexistence mechanisms[/u] to help ensure that the device defaults to 20 MHz operation when sharing the frequency with other Wi-Fi networks.» It seems many people (of the type who automatically set output power to MAX) also like to set 40MHz channels when they don’t really need it. Like you said — if you want 40 MHz, please go to 5 GHz.

. well, but still. if one’s running in 2.4 GHz, it just seems like it would be shooting oneself in the foot to run 40 MHZ channel width, unless using Meru controller or similar, because of limitations on AP channel separation. I think you’d be down to only one channel option then, or possibly two. . but I guess it really comes down to whether we’re talking Enterprise or SOHO. in the problem you are describing it would be SOHO. Right? I guess if you only have one AP you don’t much care about managing your spectrum. . and if enterprise, it comes back to the thought that I wouldn’t want to be running in 2.4 anyhow so I guess the point would be moot. Yes?

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