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Solved
RAX80 wifi speed reduced
I have 400 Mbps download speed from Spectrum and from the beginning I've been getting about 80 download speed on all my wifi devices. Upload has been a steady 20 Mbps. I followed the suggestions in t...
It is very hard with 2 stream WiFi radios. Depending on the model, you will top out at a 400Mbps PHY rate, though due to how noisy the 2.4GHz band is, since it is used by a massive range of other wireless devices, including various high powered comercial transmitters, it is just a noisy band in general.
Smart connect will try to push dual band 802.11ac and 802.11ax devices to the 5GHz band when the SNR is good enough. For example, if your client devices are not capable of using 160MHz channel width, then you will see some beenefit from setting the router to use 80MHz channel width on the 5GHz band, because then you will not be forced into the DFS restrictions, which can make it more likely for smart connect to push your device to the 5GHz band at range.
With and without 20/40MHz Coexistence, I am getting around the 150 Mbps range. It does fluctuate between 135-170. My signal strength at the point of testing was -52dBm for 2.4GHz (-58dBm for 5.0 GHz) and I got as close to the router and I achieved 186 at that time but never came close to 200 Mbps while having Coexistence disabled. I live in a rural area with only 2 other wifi bands casting in my area and they're pretty weak by the time they get to me.
I have not messed around too much with the 5G because at this point I would need to disable Smart Connect, as I do not know another way to connect to 5G directly.
Is it not possible to increase 2.4GHz speed more than that? Is barely pushing 200 Mbps all I can expect?
It is very hard with 2 stream WiFi radios. Depending on the model, you will top out at a 400Mbps PHY rate, though due to how noisy the 2.4GHz band is, since it is used by a massive range of other wireless devices, including various high powered comercial transmitters, it is just a noisy band in general.
Smart connect will try to push dual band 802.11ac and 802.11ax devices to the 5GHz band when the SNR is good enough. For example, if your client devices are not capable of using 160MHz channel width, then you will see some beenefit from setting the router to use 80MHz channel width on the 5GHz band, because then you will not be forced into the DFS restrictions, which can make it more likely for smart connect to push your device to the 5GHz band at range.