I know of at least three bandwidth fields in the various fields; there are likely more: wlan_radio.11ac.bandwidth radiotap.mcs.bw wlan_radio.11n.bandwidth. Check the different fields and you will see different strings. But in your case the one field only tells you 40MHz, the other field tells you more, which 20MHz channel is primary. 1 Answer. Sorted by: 2. 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. If you're using 2.4 GHz, the answer is simple. The best bandwidth for 2.4 Ghz is 20 MHz. In the majority of cases, using wide widths on 2.4 GHz isn't worthwhile. The performance tradeoffs from interference on overlapping channels will likely outweigh the throughput benefits. There are only 5 10Mhz non-overlapping channels in the 4.9Ghz spectrum, 2 20Mhz and 1 40Mhz channel. You have to pick between 5, 10, 20, or 40Mhz with MIMO. Although a lot of math could get involved, anytime you cut the bandwidth in half you lose half your throughput. Technically the larger the channel the more efficient it becomes, but it is
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This will force it to use 40 MHz width. This is generally not recommended if you have many other networks that operate at 20 MHz in your area. For the 5 GHz band, you can force 160 MHz width by going to Advanced -> Advanced Setup -> Wireless Setup. Routing: NETGEAR RAX43 - Firmware: v1..15.128 (1 Gbps down, 40 Mbps up)
The last is effectively 40Mhz with fallback to spec, more on that soon. A speed setting. Some brands use 150mbps / 300 / 450 to infer what bandwidth is being chosen. 150Mbps is the safe 1 20mhz bandwidth setting. The underlying issue is 40Mhz bandwidth is actually 2 adjoining full width wireless channels (ie 1 & 6) being used together to 40Mhz will give you higher bandwidth/performance but will overlap other channels so if you have many outside wifi networks visible in your area 20Mhz would be best. 0 Kudos Reply The 5GHz band is divided into 5MHz channels like the 2.4GHz band. Fortunately only every fourth channel (36, 40, 44…) is used which provides for de facto 20MHz channel width without the overlap problems of 2.4GHz. Most devices even cannot be tuned to the intermediate channels. The whole 5-6GHz is not available since there are some forbidden b7kbCF.
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    • what is bandwidth 20mhz 40mhz