Terrible speeds between router and specific phone

I have the Dlink DIR-826L router and I am having issues with speed when connected to a specific mobile device.

I have the router running wired to my PC and wireless to my PS4 and both connections get great speed, around 25mbps as it should be.

However when I try to connect it to my mobile phone the speeds I get are pretty useless, often less than 1mbps. But sometimes it will get 25 for a short time, and it often fluctuates a lot during the speedtest. It's generally to useless to watch a vid on youtube for example without a lot of continual buffering at 480p.

My phone is a Samsung J7 neo which is fairly basic. But it connects fine to other wifi, for example at work I have no problems. as far as I can tell it does not support 5Ghz and only 2.4Ghz as I only see that network. Friends seem to be able to connect to my wifi just fine with their phones. The connection strength is always full, just the speeds I get on that device are mostly useless.

Any ideas what could be causing this? I assume it is router related as the phone is fine on other wifi networks.

Thanks in advance for any help.

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Try a thing.

Change the router's WiFi 2.4GHz channel.

Be sure the channel is from 1 to 11.

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tried a thing

Thanks for the advice.
logging in to the router settings it says the 2.4ghz is on channel 4. so that should be ok? I don't see a way to change it even if I want to...


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Is this the manual for this model?
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tried this

I got around to updating the firmware from 1.02 to 1.04

I also set the wireless settings to a few different channels and set it to Mixed 802.11n and 802.11g avoiding the 802.11b like you mentioned.

Still not seeing any improvements...

There is a firmware 1.06B01 Beta, do you think that is worth trying?


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I would.

Just before swapping out the router for another model since said device works fine elsewhere.

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