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Slow Wifi speed

JarlJ
Chat Champion
Message 13 of 13

When performing speed tests from my Laptop, it only indicates download speeds of around 35-38 Mbps although, if connecting directly to router showing speeds of around 72 Mbps.

Should I change channels due to interference, or, what else could be the problem?

Many thanks,

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12 REPLIES 12

KeithFrench
Community Star
Message 1 of 13

I did PM you a link back on the 20th.

Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
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Message 2 of 13

Look forward to receiving guide. Thanks

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KeithFrench
Community Star
Message 3 of 13

I will PM you a link for a guide of mine on Wi-Fi interference & initially look at the section called "Are you suffering from interference – prove it first". This section includes full details of Wi-Fi analysers that I recommend for Windows, Windows phone, Android and Apple operating systems. However, I have no way of testing the Apple product. Do not worry about interpreting the results, I will do that for you.

Please post the screenshots that I have requested in my guide (no photos please they can be difficult to read as text can get out of focus when zoomed), from the analyser you are using (also in my attached guide). Please ensure that the analyser window is maximised (if Windows) before taking the screenshots & upload them via the "Insert Photos" button (in a mobile browser it's the picture icon) on the post editor's toolbar with the Size parameter set to Large. If they are too small, I will not be able to read them & although I can enlarge them, this just puts the text out of focus. If you prefer PM them to me. If you do PM me, then please add a link in there to this thread, so as I can find it easily.

Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they? 

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Message 4 of 13

Hi Keith, Thanks for above information. Would you kindly send me link to guide, in order to identify problem?

I switched my DECT phone off for a while, but didn't improve download speed problem. speed to router is 70mps + according to TalkTalk website. At 12 noon today using WIFI about 7metres from router, only showing  around 10mps download speed and around 17mps upload speed using 'speed test' tool on TalkTalk website. Now it's showing 68mps download and 17.5 mps upload. Rather erratic speeds experienced !! Many thanks

 

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KeithFrench
Community Star
Message 5 of 13

The DECT phone could be causing electrical interference, rather than WiFi interference, I would recommend keeping them apart. Just like keeping the router if on the ground floor as high as possible & roughly in the centre of the house , but these things are not always possible.

 

Don't change any channels yet I need to see what will be the best in your case (everyone is different). The procedure may well identify why the laptop is not connecting to the 5G.

 

I will PM you a link for a guide of mine on Wi-Fi interference & initially look at the section called "Are you suffering from interference – prove it first". This section includes full details of Wi-Fi analysers that I recommend for Windows, Windows phone, Android and Apple operating systems. However, I have no way of testing the Apple product. Do not worry about interpreting the results, I will do that for you.

Please post the screenshots that I have requested in my guide (no photos please they can be difficult to read as text can get out of focus when zoomed), from the analyser you are using (also in my attached guide). Please ensure that the analyser window is maximised (if Windows) before taking the screenshots & upload them via the "Insert Photos" button (in a mobile browser it's the picture icon) on the post editor's toolbar with the Size parameter set to Large.. If they are too small, I will not be able to read them & although I can enlarge them, this just puts the text out of focus. If you prefer PM them to me. If you do PM me, then please add a link in there to this thread, so as I can find it easily.

Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they? 

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Message 6 of 13

Thanks Keith,

Please send guide and further advice on resolving issues.

Should I change channels now? I thought the router determined optimum channels?

How do I get my Laptop to connect to 5GHZ Band?

Could the DECT phone which is located on a wooden shelf above the router cause interference?

Thanks

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KeithFrench
Community Star
Message 7 of 13

OK, there are a few things wrong here, the PC is connected to the 2.4GHz band, not the 5GHz band, which will make it slower. Plus the router's 2.4GHz channel is on channel 4, when you should only use 1, 6 or 11. However, it is now a case of identifying why this is the case.

 

Slow speed, intermittent dropouts, breaks in the signal, or no signal on some or all devices, might be caused by Wi-Fi interference from other local networks, which can also lead to a permanent reduction in speed. No ISP can be responsible for your local environment, this is mainly a by-product of the popularity of Wi-Fi.

Generally speaking, the 2.4GHz band suffers much more from interference than the 5GHz band, but the 2.4GHz one can sometimes have a better range, but this all depends on your local area.

The next stage involves sending out a guide to you to help you get me some important diagnostic results, so as I can analyse them for you and recommend changes to your router configuration to solve them.

I only send this out to people who request it.

Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
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JarlJ
Chat Champion
Message 8 of 13

Hi Keith,

Router : Huawei DG8041WDrivers.pngInterface.png

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KeithFrench
Community Star
Message 9 of 13

Hi @JarlJ 

 

@Michelle-TalkTalk has asked me to help you with your wireless speeds. Reading through your posts, am I correct in thinking that the TV being slow on powerline adapters is just an occasional problem & the wireless is slow all the time?

 

Which make/model of router do you have? Assuming the laptop is running Windows, please can you go to the command prompt & get me the output from these two commands:-

 

netsh wlan show drivers

netsh wlan show interface

 

pressing the Enter key after each one.

 

Thanks.

Keith
I am not employed by TalkTalk, I'm just a customer. If my post has fixed the issue, please set Accept as Solution from the 3 dot menu.
TalkTalk support and Community Stars - Who are they? 

Message 10 of 13

Hello,

 

I'm sorry for the delay in getting back to you. @KeithFrench - Would you be able to offer any advice in regards to the wireless speeds please?

 

Thanks

 

JarlJ
Chat Champion
Message 11 of 13

Hi,   Still only achieving Wifi speeds around half that as using an ethernet cable direct to router. Have powered down router on two occasions for at least 30 minutes to test. On one day for a short period of time I was getting speeds around 70Mbps using Wifi, but very brief! 

Wifi connection using Laptop which is located in a room with open door about 8 metres from router. The TV connection is also slow on occasion, which is connected using TalkTalk powerline adapters, which I have also swapped to check. 

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Debbie-TalkTalk
Support Team
Message 12 of 13

Hi JarlJ

 

Have you tried powering down the router for a full 30 minutes and then running a speed test?

 

Thanks

 

Debbie

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