300Mb Fiber Connection: ASUS RT-N65U Wireless-N750 Router, Speed Test Shows 48Mb & 20Mb on Laptops

Question

Hello,

I have 300Mb fiber connected. The speed test on the laptop shows 48Mb. I was updating my network card. ASUS RT-N65U Wireless-N750 Dual-Band 300 + 450Mbps router. On the second laptop it only shows 20Mb. What is it to blame and how can I improve my results?
Thank you in advance for your help

m.jastrzebski · Accepted Answer

Do not expect any miracles. As they write 300mbit on the WiFi router, expect in practice around 100mbit or worse. To get the most out of WiFi: - you mess with the channels, you scare the neighbors - you use 5Ghz you avoid 2.4Ghz - make sure that your computer's network card can use the fastest operating mode, i.e. MIMO 2x2 (two transmitting and 2 receiving antennas) and a 40Mhz channel. Sometimes you have to bury in the driver settings to force some things. Then you have 100mbit chances a bit more / less on WiFi. 300mbit are ladies in the laboratory, on WiFi AC, with an 80Mhz channel.

smario11 · Accepted Answer

If you only have laptops with 100Mbit ports, you only have to replace laptops with new, better ones. You can combine with the router in AC, but the wifi cards in laptops also need to be replaced with AC. The cost is quite high.

100Mbit over wifi is quite real, if you want 300Mbit, you need to connect with a cable and have a gigabit card

dt1 · Answer

Hello. What results does speedtest show after connecting the laptop with a cable to the router? What models of network cards (WiFi) are installed in these laptops?

Msrtin · Answer

The results are better after the cable. On both pages, download and upload 90Mb each. Intel Wireless N7260 card on one and Dell Wireless 1704 on the other. Like the 90Mb cable, but it's still 3 times less than it should be. So what to do to improve the results via WIFI.

hermes-80 · Answer

What ETH card do you have in your laptop - maybe 100 Mb / s? ISP bandwidth works on cables, not WIFI - wifi is a lame medium as you just found out.

Msrtin · Answer

Thanks for the answers. I have an asus 2.4 / 5ghz. up to 2.4ghz there is a different ssid and up to 5ghz it is different and wifi only sees ssdi with a frequency of 2.4ghz. How to change to 5ghz?

dt1 · Answer

This card should see the 5GHz network. It is a dual band card and supports both 2.4GHz and 5GHz. This card should not, because it is an 802.11bgn card that works only on the 2.4GHz band.

Msrtin · Answer

I was looking in the card settings to help her see 5ghz, I found nothing. Maybe someone knows what to do to make the card see 5ghz?

m.jastrzebski · Answer

That is not possible! The radio module is designed to receive only 2.4Ghz. You won't change it with the settings. You would have to replace the WiFi card in the computer. But there are antennas connected to the card (usually hidden somewhere behind the screen). It may be that the antenna itself will not work at 5Ghz, even if the card can. Another problem, it may be (and this is suggested by the speed of 20mbit) that you only have 1 antenna there, then from 300mbit you will be 150mbit both ways, i.e. max 75mbit. In practice, if 60mbit will come out, it will be a success.

Msrtin · Answer

OK thanks. Would it help to buy a usb network card so that it could support at least 5ghz? Maybe you recommend something?

dt1 · Answer

Give more models of wired network cards on which you are testing the connection. It is also worth doing the test by connecting without the router - directly to the operator's access device. However, it is worth doing such a test with a GbE (1000Mbps) card.

300Mb Fiber Connection: ASUS RT-N65U Wireless-N750 Router, Speed Test Shows 48Mb & 20Mb on Laptops

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