Wireless

[D1800H]

Hello

I am an adopter of the WZR-D1800H and so far it has been great! I do have a question though. I have the following 802.11n devices:

Samsung Galaxy S Phone

Acer Iconia A500

Roku 2 XS

While none of these can detect the 5ghz band, they can connect to the 2.4ghz. What I have noticed though is that they are all connected using 802.11g! why would this be happening? It doesn't matter how far away or if I use 20 or 40mhz channel - they just seem to use 802.11g. I verified the connection method by viewing the log in the diagnostic menu of the D1800H.

Thank you in advance! :)

[buddee]

Which wireless security do you happen to be using here?

[D1800H]

Using WPA2 with AES only.

[buddee]

And on the 2.4Ghz radio, what wireless mode do you run it in NG-Mixed or N-only or? (and yes i read the post, i know you said HT20 or HT40 doesn't matter) which channel are you using?  Also, do you like in a 2.4 congested area?

I have some what of an idea why this may be happening, though i hope its not what i think it is...

[D1800H]

The current firmware on the D1800H doesn't allow the 2.4ghz radio to transmit N-Only, so it is currently in mixed mode @ 40hz on channel 11. I used a 3rd party analyzer and my only neighbor is using channel 6.

[buddee]

Yes, but are you using 40Mhz channel 11 on upper or lower?

[D1800H]

I am familiar with what you're asking, but the firmware isn't dd-wrt - it is very limited and doesn't even give you the option for upper/lower or tell you which is in use.

This is the only info the firmware gives for the 2.4ghz radio.

WZR-D1800H Ver.1.86 (R1.80/B6.30.15-1.04-1.00)

Wireless(802.11n/g/b)     
Wireless Status     Enabled
SSID     Guest
Authentication     WPA2-PSK
Encryption     AES
Broadcast SSID     Enabled
Privacy Separator     Disabled
Wireless Channel     11 (Manual)
High-Throuput Mode     40 MHz

[D1800H]

Using wifi analyzer, my devices are connecting to CH 11 2462Mhz. Just thought I'd add that bit of info. Everything is still connecting @ 802.11g. Banging my head against the wall on this one.

[buddee]

Here is what i feel is happening, you are using an edge channel (1 or 11) for N, and since you cannot specify certain settings within the firmware, its backing down to G rates, i think for you the only way you could run N - and i mean even at ht20Mhz 65/150mbps link rates - is use channel 6. This way you can go either lower or upper on the aux channel. Here is an interesting article to read, and yes i know its HT40Mhz N specific, but in your case with an edge channel, i think it would affect HT20Mhz rates as well.

http://www.smallnetbuilder.com/wireless/wireless-features/31743-bye-bye-40-mhz-mode-in-24-ghz-part-1

But i could be very wrong in this thinking, and it could be a local config not setup properly, but i doubt it..

[D1800H]

Thank you for the info. I'll read up on this and cross fingers for DDWRT to release a build for this router.

Thanks again, buddee.