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Forum Discussion
Glitch01
Aug 28, 2022Aspirant
Orbi AX4200 WiFi 6 Router (RBR750) Random Reboots
Solved my issue with my Orbi AX4000 (RBR750) rebooting randomly or loosing wifi connectivity especially on the guest network and want to share what fixed it for me. Reboots occurred every few days a...
ekhalil
Aug 29, 2022Master
That is strange! It should be the other way around, as I understand it! 🙂 The setting "Enable 20/40 MHz Coexistence for 2.4 GHz band" says that if the quality of the connection is bad, then you accept to go down to 20 MHz bandwidth. When this is disabled, it means that you only accept 40 MHz, so either 40 MHz or nothing, which will make the connection vulnerable to band satuaration.
- Glitch01Aug 29, 2022Aspirant
"The 20/40 MHz coexistence setting permits the 2.4 GHz radio to use the entire 40 MHz bandwidth (and interact with both 20 MHz and 40 MHz bandwidth clients) unless it finds another AP using an adjacent channel on the 2.4 GHz band, in which case interference is unavoidable."
The option enables 40 MHz which then chokes out from high saturation. Even devices connected to the NIC ports lose internet connection. With this option disabled, the router strictly uses 20 MHz. It's slower but does not have wireless interference.
- ekhalilAug 29, 2022Master
Glitch01 wrote:......... With this option disabled, the router strictly uses 20 MHz. It's slower but does not have wireless interference.
No, it's the other way around: Disabled means strictly 40 MHz bandwidth! If you have any legacy devices, then you need to keep 20/40Mhz enabled so these older devices can connect to the wifi. If you don't, then you can enable 40Mhz only on 2.4Ghz. You don't have to always use 20/40Mhz channel width.
- Glitch01Aug 30, 2022Aspirant
You are correct, disabling it will force 40 MHz, enabling allows it to switch to 20 MHz in a congested wifi location.
- Cinemagic310Feb 04, 2023GuideDoes it matter if you raised the DNS pool to 100-200?