Cannot connect any higher than 150mbps on 5GHz WiFi

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Detection
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Joined: 19 Jan 2012
Posts: 403
Location: UK

PostPosted: Sun Jun 03, 2018 11:41    Post subject: Cannot connect any higher than 150mbps on 5GHz WiFi Reply with quote
I bought a TP-Link Archer T2U AC600 Wireless USB adapter for my media centre upstairs, works fine but will not connect any higher than 150mbps, I've tried changing channels on the router, region/channel on the adapter settings, I have 40Mhz Wide channel enabled, but also tried with 20Mhz, tried just about everything I could find online, new drivers too, but nothing will allow it to connect any higher

It is connected to 5GHz as I have the router set to only output 5Ghz

My Phone (Galaxy S9) connects at 300mbps, so the router is fine, I've tried it on two different machines with the exact same result on both, one is a laptop right next to the router

Updated router firmware to build 36079, previously running 359xx with the same problem

Any ideas?

Router Model
TP-Link TL-WR2543

Wireless Adapter
TP-Link Archer T2U AC600

OS: Windows 10 Pro 1803 / Windows 10 LTSB 2016

Thanks

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Per Yngve Berg
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Joined: 13 Aug 2013
Posts: 6856
Location: Romerike, Norway

PostPosted: Sun Jun 03, 2018 12:32    Post subject: Reply with quote
I suspect that the TL-WR2543 is N type only, not AC.

It should have had 80Mhz wide otherwise.

Your S9 should connect AT 860 mbps to an AC router.

How many antennas does it have?
h8red
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Joined: 28 Jun 2011
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Location: Vilnius, Lithuania

PostPosted: Sun Jun 03, 2018 12:40    Post subject: Re: Cannot connect any higher than 150mbps on 5GHz WiFi Reply with quote
Detection wrote:
Router Model
TP-Link TL-WR2543
Thanks


This router has 2 radios. But only one works at a time. 2.4. or 5 Ghz. Switch only 5 Ghz band, leave 2,4 disabled

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[Ramips] Nexx WT3020F Openwrt @kernel #4.14.167 (OpenVPN server, Wireguard server, AD blocking, SQM QOS, USB)
Detection
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Joined: 19 Jan 2012
Posts: 403
Location: UK

PostPosted: Sun Jun 03, 2018 13:24    Post subject: Reply with quote
Per Yngve Berg wrote:
I suspect that the TL-WR2543 is N type only, not AC.

It should have had 80Mhz wide otherwise.

Your S9 should connect AT 860 mbps to an AC router.

How many antennas does it have?


3 Antennas, and yes N only, but if my S9 can connect at 300, then surely the USB adapter should also?

The router says 450mpbs for 5GHz too


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h8red
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Joined: 28 Jun 2011
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Location: Vilnius, Lithuania

PostPosted: Sun Jun 03, 2018 13:27    Post subject: Reply with quote
Detection wrote:
The router says 450mpbs for 5GHz too


Thats max for this router. 433 mbps on 5 Ghz to be exact

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Detection
DD-WRT User


Joined: 19 Jan 2012
Posts: 403
Location: UK

PostPosted: Sun Jun 03, 2018 13:28    Post subject: Reply with quote
h8red wrote:
Detection wrote:
The router says 450mpbs for 5GHz too


Thats max for this router. 433 mbps on 5 Ghz to be exact


Yes, which is why I am asking why my 5GHz USB adapter is only connecting at 150 when other devices connect at 300

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h8red
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Joined: 28 Jun 2011
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Location: Vilnius, Lithuania

PostPosted: Sun Jun 03, 2018 13:44    Post subject: Reply with quote
Your "other" devices should connect at 433. Disable 2,4 band on your router
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Detection
DD-WRT User


Joined: 19 Jan 2012
Posts: 403
Location: UK

PostPosted: Sun Jun 03, 2018 13:58    Post subject: Reply with quote
h8red wrote:
Your "other" devices should connect at 433. Disable 2,4 band on your router


lol, are you reading any of this thread, including what you have already said?

You said yourself my router is only single band, therefore if it is already set to output 5GHz, then 2.4GHz is already disabled...

My router is only outputting 5GHz WiFi
Other devices are connecting at 300mbps
USB adapter is only connecting at 150mbps
Why is USB adapter only connecting at 150mbps?

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Per Yngve Berg
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PostPosted: Sun Jun 03, 2018 14:19    Post subject: Reply with quote
150 is max. with a single stream client (one antenna).
Detection
DD-WRT User


Joined: 19 Jan 2012
Posts: 403
Location: UK

PostPosted: Sun Jun 03, 2018 16:00    Post subject: Reply with quote
Per Yngve Berg wrote:
150 is max. with a single stream client (one antenna).


So this 5GHz @ 433mbps is only AC mode, not N, that's pretty sucky, I'm guessing the S9 has more than one antenna then allowing twice the connection rate

It staets on the box that this is capable of 433mbps @ 5GHz, the website says only AC can do this, but it would still only be a single antenna client right?

So how can AC get 433 when N can only get 150 with the same number of antennas?

Cheers

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vit5421
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Joined: 12 Nov 2015
Posts: 413

PostPosted: Sun Jun 03, 2018 16:27    Post subject: Reply with quote
Detection wrote:
Per Yngve Berg wrote:
150 is max. with a single stream client (one antenna).

So how can AC get 433 when N can only get 150 with the same number of antennas?

Cheers


Here is the nice simple manual about AC
https://www.intel.com/content/www/us/en/wireless-products/80211ac-wifi-for-dummies.html

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bushant
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PostPosted: Sun Jun 03, 2018 16:32    Post subject: Reply with quote
I do not know how you determine actual speed. WIFI sweetspots claims around 130Mb/s while iperf says 92Mb/s to android, and dd-wrt speedchecker claims 28Mb/s to my really old 32bit laptop running Kubuntu. This is to the wzr-hp-ag300h connected to 5GHz. So I would take 150 happily and wish for more.
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Detection
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Joined: 19 Jan 2012
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PostPosted: Sun Jun 03, 2018 16:46    Post subject: Reply with quote
vit5421 wrote:
Detection wrote:
Per Yngve Berg wrote:
150 is max. with a single stream client (one antenna).

So how can AC get 433 when N can only get 150 with the same number of antennas?

Cheers


Here is the nice simple manual about AC
https://www.intel.com/content/www/us/en/wireless-products/80211ac-wifi-for-dummies.html


Thanks I`ll have a read through, not used AC yet so it seems there is much to learn

Well it cured my problem i was having with 2.4GHz and crowded channels, so it's working for what I need it to anyway

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Detection
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PostPosted: Sun Jun 03, 2018 16:48    Post subject: Reply with quote
bushant wrote:
I do not know how you determine actual speed. WIFI sweetspots claims around 130Mb/s while iperf says 92Mb/s to android, and dd-wrt speedchecker claims 28Mb/s to my really old 32bit laptop running Kubuntu. This is to the wzr-hp-ag300h connected to 5GHz. So I would take 150 happily and wish for more.


I copy large single files from my NAS to my media centre to check local wifi speed

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bushant
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PostPosted: Sun Jun 03, 2018 16:55    Post subject: Reply with quote
Detection wrote:


I copy large single files from my NAS to my media centre to check local wifi speed


AHA Havn't tried the old clock method yet. Never fails.

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