The router cuts the channel

Question

network hardware

I got home a “people's” D-link DIR-615 router, because I was tired of wires. With a wireless Internet connection (100 Mbps), the best speed I got on a torrent is a little over 40 Mbps (when connected with a cable, it reached 90 at the best of times). I tried to turn on the “Only N”, “Mixed NG” modes, alternative firmware from DD-WRT with the same modes. The distance from the router is five meters from the force. When looking for a solution to the problem using the Google method, it is advised to change the firmware, which has already been done. Can anyone else come across, what could be the reason? Thank you all in advance for your advice.

Upd1: for information - restoration to the factory firmware version 5.11 beta3 aggravated the situation even more, the speed dropped two more times, so I returned to DD-WRT

Upd2:Thanks again to everyone for the advice, something tells me that this device will not last long with me

Answer 1

What about a laptop? Does he even hold the "N"?

Answer 2

There was such a problem on dir-300 and dir-320 until I switched to a more expensive model - ASUS n56u. Everywhere they write that the router does not have enough brains to process normally too fast traffic, especially if you have such a “heavy” connection like PPTP. I don't know if this is true or not, but it helped me.

Answer 3

For the DIR-320, the advice found on one of the forums helped me to lower the signal strength to half of the maximum. But I have lower speeds: at 50 Mbps of the wi-fi channel, it gave out a maximum of 10 Mbps, after lowering the power, it started to give out 20 Mbps.
In addition, if you have many other Wi-Fi points in your house, they can interfere with each other, creating interference that reduces effective throughput. In this case, it is advised to play around with the frequency subranges of the signal (again, in the router settings). But it seems like modern routers themselves are able to choose the most “noisy” subrange.

Answer 4

I have DIR-615 (Hardware Version: E4 Firmware Version: 5.11RU)
On N-cards I received no more than 70Mbps. Although some pseudo-cards ala Broadcom 4313 seem to support the N standard, but do not issue more than 30-40Mbps.
Look at the “Channel Width” parameter, you can’t squeeze out more than 50 Mbps at 20Mhz.

Answer 5

Info from D-Link website:
Maximum internet speed*
(for hardware revision Ex)
Static IP: 68.08 Mbps
Dynamic IP: 69.36 Mbps
PPTP: 55.04 Mbps
L2TP: 27.60 Mbps
PPPOE: 64.48 Mbps
Choose your choice... :(

Answer 6

The router just can't go faster. I have a Dir-320, even over the cable, even over the air, it gives 60 Mbit / s maximum and nothing can be done about it.