This topic

Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 09:52:50 GMT

I'm using a BT Smart Hub 2 (Fibre with BT Halo 2) with a LAN connection and whenever I try to Upload ANYTHING (So say a video to YouTube, something in Dropbox, use Backblaze etc) it absolutely cripples my download speed.

This has been happening since about November last year.

The download speed will drop to under 1 Mb while uploading and it makes doing any other online task impossible.

I have 80/20 (Or whatever the max for this is).

Any thoughts anyone please?

Notes: This didn't start to occur when I had a new Smart Hub and I've also tried a new Smart Hub and that doesn't make any difference either.

Thanks in advance.

Re: Uploading anything CRIPPLES my download speed

Keith_Beddoe — Tue, 24 May 2022 10:45:37 GMT

@coffee_king

If you fully utilise your upload connection, then that will restrict your download speed.

Reduce your upload rate, and the download speed should return to normal.

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 11:23:54 GMT

OK, so how does one LIMIT their upload speeds/connection then?

Say when uploading to YouTube?

Re: Uploading anything CRIPPLES my download speed

NigelB72 — Tue, 24 May 2022 11:53:26 GMT

You'll need to download some 3rd party software to manage your upload and download speeds. You should be able to find some by uses a search engine.

I had a quick look and found some free software within 10 seconds 👍

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 11:54:18 GMT

Oh right, so does every BT user have this same issue then? And they all have to download software to restrict upload speeds?

Re: Uploading anything CRIPPLES my download speed

Keith_Beddoe — Tue, 24 May 2022 12:15:18 GMT

Its not a BT issue, its the way TCP/IP works. Downloaded packets need to sent acknowledgements back to the network. If the upload path is saturated, then that restricts that process, so your download speed drops.

Remember you may also have other background apps uploading, like BT Cloud, OneDrive or DropBox.

Try running this test, to see what your actual speeds are https://speedtest.btwholesale.com/

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 12:45:45 GMT

OK, so would you like to advise me why I've NEVER had this issue before then in all the years I've been "Online"?

I hadn't changed my router, my contract or ANY apps that backup/upload.

My other friends, work colleges etc have a similar set up to me and they don't experience this issue.

You said "Remember you may also have other background apps uploading, like BT Cloud, OneDrive or DropBox."

I already said that Dropbox affects it. Whenever anything is placed in there to upload and sync my download speeds are crippled. I dont have the other two apps you mention.

It doesnt matter which computer or tablet or phone is uploading either by LAN or Wifi, it still cripples the download speed as its uploading.

Re: Uploading anything CRIPPLES my download speed

Carlusha — Tue, 24 May 2022 13:09:34 GMT

@coffee_king Dropbox contains settings that cater for this sort of thing. As for YouTube, I have stopped uploading (too old these days) but before you upload another video, try clearing the cache on the browser you are using.

Re: Uploading anything CRIPPLES my download speed

Keith_Beddoe — Tue, 24 May 2022 13:13:49 GMT

@coffee_king

Run the performance checker and see if the upload speed is being affected by a network issue. You may not be getting a good upload speed.

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 14:19:34 GMT

This has been going on for six months now. I clear my cache regularly. It has nothing to do with this.

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 14:21:12 GMT

There is nothing wrong with my upload or download speed under normal circumstances.

Only when uploading do downloading speeds drop to dreadfully low speeds.

Re: Uploading anything CRIPPLES my download speed

gg30340 — Tue, 24 May 2022 15:24:14 GMT

Just because you are on the 80/20 package does not necessarily mean you will be able to get those speeds.

You will only ever get the maximum speeds that your line can support regardless of what package you are on.

Before trying to fault find you need to know what your "normal" broadband speeds are and what BT estimated that your line should actually be capable of. Can you run this checker and post the results leaving out your phone number. If your line is a digital voice line you will need to use the Address Checker tab. Delete you address before you post the results.

BT Broadband (btwholesale.com)

Can you run a speed test when you are not doing anything on the Internet and another when you are experiencing the problem and post the results.

BTW Performance Tester (btwholesale.com)

Can you also post the stats from your your BTSmarthub by logging onto the hub's management page and going to Advance settings > Information and post the information of the first twelve lines of the log.

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 16:52:53 GMT

I can't see a way of copy/pasting the info from

the link you suggested

onto here as it states "Your post has been changed because invalid HTML was found in the message body. The invalid HTML has been removed. Please review the message and submit the message when you are satisfied."

This isnt my first time using broadband.

I'm well aware that these are maximum speeds.

Ping 13
D 64.9
U 16.69

Log:

17:49:49, 24 May.
admin login success from 192.168.1.76

17:49:12, 24 May.
admin login error from 192.168.1.76

17:46:50, 24 May.
admin timeout from 192.168.1.76

17:36:25, 24 May.
ARP [add] br0(wl0) 192.168.1.125 b2:fb:af:74:d6:4d

17:35:44, 24 May.
2.4G Client disassociate from b2:fb:af:74:d6:4d (IP=192.168.1.125) RSSI=0, Rate=0Mbps

17:35:43, 24 May.
2.4G client Mac: B2:FB:AF:74:D6:4D Deauthentications (Reason:Deauthenticated because sending station is leaving (or has left) IBSS or ESS)

17:35:38, 24 May.
DHCP device Connected: 192.168.1.125, b2:fb:af:74:d6:4d, unknown

17:35:38, 24 May.
LAN [ADD] ARP 192.168.1.125 with b2:fb:af:74:d6:4d from br0(wl0)

17:35:36, 24 May.
WHW INFO A station (SmartHub2)IF[5G](18:82:8C:3E:22:84):STA(B2:FB:AF:74:D6:4D)(Legacy Device) join WHW infrastructure

17:35:36, 24 May.
Self roaming might be occurring... Deauth original one...

17:35:35, 24 May.
2.4G Client associate from b2:fb:af:74:d6:4d (IP=192.168.1.125) RSSI=-55, Rate=130Mbps, host

17:35:35, 24 May.
Lan IPv6 Neighbour Discovery events: NEIGHBOR_SOLICIT

Re: Uploading anything CRIPPLES my download speed

imjolly — Tue, 24 May 2022 16:58:54 GMT

You need to use the camera icon

Re: Uploading anything CRIPPLES my download speed

coffee_king — Tue, 24 May 2022 17:07:14 GMT

Oh, you want me to upload a screen shot, fine.

(333kb is ridiculous for a screenshot, but I just about managed it)

Re: Uploading anything CRIPPLES my download speed

gg30340 — Tue, 24 May 2022 17:42:42 GMT

The information from your hub is not the stats that were requested. My mistake I omitted to say you need to go into the Technical log. You need to log onto the hub management pages then go to "Advance Settings" and log on using your admin password then go to Technical Log then Information and post the first 12 lines.

As regards you being well aware about your maximum speeds, unfortunately not every body who uses this forum are and those trying to help you are not aware of what yours are.

Re: Uploading anything CRIPPLES my download speed

coffee_king — Wed, 25 May 2022 08:07:39 GMT

First 12 lines of technical log

Re: Uploading anything CRIPPLES my download speed

licquorice — Wed, 25 May 2022 10:20:40 GMT

@gg30340 wrote:

Technical Log then Information and post the first 12 lines.

Re: Uploading anything CRIPPLES my download speed

coffee_king — Wed, 25 May 2022 10:23:47 GMT

Re: Uploading anything CRIPPLES my download speed

TinaT — Wed, 25 May 2022 15:00:54 GMT

The BT hubs are absolutely diabolical for bandwidth management. Before I got full fibre, I was stuck on a pathetic speed for years, particularly the upload speed. I suffered the exact same problem as the OP, until I swapped to a third-party router.

It automatically managed bandwidth and meant that uploading something on one device, didn't ruin the internet for other devices.

Simply stating "lower your upload speed" to stop it happening, is nonsense. A good router will manage bandwidth without having to faff around.