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Why is my 2.4 GHz band so much slower than my 5 GHz band?

IbadImp
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While I understand that 5 Ghz is supposed to be faster, i cant seem to understand why im getting such a difference.

 

From my room (around 5-6 meters away from the router, passing through one wall) I get about 1-3 mbit/s on the 2.4ghz band, whereas on the 5ghz band i get about 25-30. Also, the latency on the speedtest is very high on the  2.4 ghz band (around 130ms to 300ms), whereas its around 2-4ms on the 5ghz band. Any fixes? 

im using the Archer ax10 router from TPlink btw

speedtest.png

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a lot of less bandwidth concerned devices are still 2.4GHz only, you probably have a lot of them?

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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5 ghz is faster, but more sensitive about obstructions (walls, other things affecting signal) 

2.4 ghz is less sensitive but naturally slower.

 

However, what you end up with also depends on what channel or channels your router decides to use and how many networks and wireless devices are present on 2.4 ghz. 

The more wireless networks and devices, the more "busy" and "noisy" the air around you is, so it's harder for the router to separate the signal from your computer from everything else. 

 

You can use various applications to figure out which channels are less congested, you would want to configure your wireless router to use channels that are less used by other wireless networks around you, so you'd get a stronger signal between your computer and the router.

 Even the position of your wireless antenna can affect the speed and latency and if your antenna is behind something that's made of metal (for example if it's behind the computer case near the wall) you can have problems with it. If that's the case you can buy separate antennas with a meter or so of cable, which would allow you to position the antennas somewhere to get better signal. 

 

Here's for example screenshots from an open source android app called wifi analyzer (open source)  - it's in google play 

It shows how the lower channels are very busy, so for better signal it would be a good idea to set the router on the higher channels in this location. 

 

Screenshot_2021-12-09-15-40-43-565_com_vrem.wifianalyzer.thumb.jpg.87f529bd34e554816a6c35bebf8c5230.jpg

Screenshot_2021-12-09-15-41-10-888_com_vrem.wifianalyzer.thumb.jpg.ee2fa11aea5c038b60576342b2e65997.jpg

 

 

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31 minutes ago, Jurrunio said:

a lot of less bandwidth concerned devices are still 2.4GHz only, you probably have a lot of them?

oh yeah i just moved some of those around and its actually useable now, thanks

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