Low 802.11ac speeds with Netgear AC1450/Kong 34800M

Post new topic   Reply to topic    DD-WRT Forum Index -> Broadcom SoC based Hardware
Author Message
imrazor
DD-WRT Novice


Joined: 03 Mar 2007
Posts: 11

PostPosted: Sun Feb 11, 2018 1:53    Post subject: Low 802.11ac speeds with Netgear AC1450/Kong 34800M Reply with quote
I successfully flashed a second hand Netgear AC1450 with Kong's 34800M build. So far it seems to be working fine *except* for really slow 802.11ac download speeds. From 3 feet away an iPhone 6S gets 1-2Mbps download speeds and 8-10Mbps upload speeds. An 802.11ac equipped Dell laptop gets about 1.5Mbps download/8Mbps upload speeds from 30 feet away thru 2 wooden walls.

In contrast, the same laptop gets 50Mbps down/8Mbps up when connected to the same AC1450 router using 802.11n. Am I missing an obvious setting? This is a second hand router, so it could be defective, but I was expecting much better from 802.11ac...

EDIT: Well, I got my 802.11ac speed up to 20Mbps down by changing the basic rate from 'default' to 'all', enabling frame burst and doubling the TX power. But 802.11n speeds are still 2.5 times faster, even from 3 feet away.
Sponsor
Nuor
DD-WRT User


Joined: 20 Apr 2015
Posts: 114

PostPosted: Sun Feb 11, 2018 4:52    Post subject: Reply with quote
From a distance of ~ 3 meters.

Using "default" for basic rate and 20 MHz for width I had 3.9mbps down 9.9 mbps up

Using "all" and 40 MHz. I have 34mbps down 12.5mbps up.

I'm also running a 1100/800 overclock on cpu/memory.

This is AC I don't have any "N" clients to test with.
imrazor
DD-WRT Novice


Joined: 03 Mar 2007
Posts: 11

PostPosted: Sun Feb 11, 2018 5:31    Post subject: Reply with quote
Nuor wrote:
From a distance of ~ 3 meters.

Using "default" for basic rate and 20 MHz for width I had 3.9mbps down 9.9 mbps up

Using "all" and 40 MHz. I have 34mbps down 12.5mbps up.

I'm also running a 1100/800 overclock on cpu/memory.

This is AC I don't have any "N" clients to test with.

If you want to test the connection speed, you can give the 2.4Ghz and 5Ghz networks seperate names/SSIDs and manually connect to either. Most modern laptops and phones have 2.4Ghz and 5Ghz radios. You'll then be able to select 802.11ac and 802.11n according to the network name/SSID.
imrazor
DD-WRT Novice


Joined: 03 Mar 2007
Posts: 11

PostPosted: Sat Feb 17, 2018 23:54    Post subject: Reply with quote
I have no idea what happened, but I'm now seeing 100+ Mbps download speeds on my 802.11ac network. I swear I didn't change anything. It just seemed to magically fix itself...???
Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 6858
Location: Romerike, Norway

PostPosted: Sun Feb 18, 2018 8:08    Post subject: Reply with quote
What do you see in Status->Wirless?
Display posts from previous:    Page 1 of 1
Post new topic   Reply to topic    DD-WRT Forum Index -> Broadcom SoC based Hardware All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum