[Vauxi]

Allright. Driver version is now 10.0.0.303. Nothing changed. Do you need something special from DIR ? Wireless signal is good reported by windows. Connection speed is 300 but speed is half.

[KrypteX]

OK, so the WiFi card is ruled out. Driver 10.0.0.303 is as good as it gets on Atheros.

I recommend flashing build 26348 on your DIR-615 D1, do a restore to factory defaults before and after flash from the current build that you have.
Use file dir615d-ddwrt-webflash.bin from here:
ftp://ftp.dd-wrt.com/betas/2015/02-24-2015-r26348/dlink-dir615d/

Also make sure to use a manually set channel (I use Ch. 11 + Lower Extension ch.) and NG-Mixed in your router's WiFi settings. Also, WPA2 Personal with AES security.

[Vauxi]

-Factory reset from gui
-Updated to build 26348 and selected factory defaults after flash and inserted all basic settings by hand.
-Wpa2 aes
-channel 6(none used between 2-7 according to survey)
-wide 40mhz ht 20+20
-lower channel
-ng mixed
-tx power 100. Made no difference with 71

Result: an Hair faster. passed through 40

[KrypteX]

[Vauxi]

Using AP. Should I try to downgrade to original firmware and test speeds there ? Just to make sure.



In case you missed what speeds I've always had from wired lan to wireless. Mt = MB
Tried to turn off spi firewall for kicks. No issue there.

[KrypteX]

WiFi-to-LAN speeds are usually high because there's no actual Firewall involved (both are on the same internal subnet).

So you say with Firewall turned off the WAN-to-WiFi speed is good ? 70 Mb/s ? Or I misread your statement ?

And yes, it might be a good idea to go back to stock firmware and check the WAN-to-WiFi speeds, just to make sure.

[Vauxi]

I meant that with or without spi, speed is half.

[KrypteX]

On router's Wireless status page what is the TX and RX connection speed with your PC ? Does it go up to 300 Mb/s ?

[Vauxi]

With latest original firmware 4.14 speeds varies a lot more and looks like it loses packets etc. But usually speed is 56MB. This kind of conection can not be used coz' it is really unreliable. DIR shows wlan connection speed to be 270 and windows shows 130. No wonder I replaced this to dd-wrt years years ago

There is only one wall between pc and router. Wall is made from plasterboard.


Reverted back to dd-wrt build 26348. Status shows about same readings about wlan connection. tx rate 270, rx rate varies 100-270. Signal quality kinda poor 56? Windows still says perfect quality..

But what was weird. That after using original firmware and upgraded to dd-wrt. DD-wrt remembered old settings I used emergency room to downgrade firmware.

[KrypteX]

It remembered the settings because nvram was not properly erased. You should do the 30/30/30 reset before and after any flash (even though some might say it's stupid to do this every time).

[Vauxi]

Ok, that figures.

Ran few tests this morning using laptop, htpc and this wlan desktop. Laptop can not achieve speeds over 50 with wired connection. It struggles with flash so much. That's okay. I use It's wlan wich is 20mhz N. Next was my htpc wich is connected only by wire. With that connected straight to zyxel modem wich is bridged I got


Next in turn was asus dls-n66u in ethernet wan mode


Then dir-615


So basic stuff wan to lan speed is working as it should.
Lastly tested wlan


What is odd too. Wireless speeds what I got with asus are exactly same as with dir. Even while asus box is lets say 2 meters closer than dir is.

wireless asus speed

[KrypteX]

Then the issue doesn't lie in the router. Anyway, it's strange, I don't have any other good idea for you to try at the moment.

[Vauxi]

Yeah. But by my limeted knowledge from these things. It is mystifying why traffic through nat and firewall is so much slower to wireless than it is for wired. And on the other hand, wireless speed is correct when traffic is only inside network when nat and firewall isn't needed. Even with two separate routers. Asus support didn't know anything to this. And other users are having same speed issues too.


Edit:
I even tested wlan speed from that zyxel modem. Turned it to an ap from bridged and got same less 40 speeds. I'm confused.

[Vauxi]

Achieved giant leap

How? By enabling Qos. This is what I got after enabling qos and set limits to 90 and 10 thousands


Ran it three times. On and off. With on speed is over 50 and with off speed is limited to under 40.

[KrypteX]