This topic

What is an acceptable speed for SH2 and a gigabit line ?

archiveking — Tue, 06 Sep 2022 11:27:08 GMT

I have a Smart Hub 2 with a 900mg connection to the house but the BT engineers cannot get more than 400 out of the Sh2 despite supplying 2 brand new ones - thats using a cable. Wifi is much less - 300.

Has anyone out there got a speed closer to what we are being promised i.e 900mg ?

Seems like we are being promised speeds that cannot be achieved with the current smart hub.

Re: What is an acceptable speed for SH2 and a gigabit line ?

Checked2013 — Tue, 06 Sep 2022 12:09:53 GMT

@archiveking This clearly shows its not the smarthub at fault, maybe need an engineer to check the light levels, usually they tell you this during the install process. Could also be a build problem, sometimes happens when they build the profile too early before the ONT is connected and in full operation.

For the record, touch wood 🪵 I've not had any speed issues on mine.

Re: What is an acceptable speed for SH2 and a gigabit line ?

pippincp — Tue, 06 Sep 2022 12:35:50 GMT

You can test the speed to the ONT by connecting directly to it and setting up a PPPoE connection using the following.

User Name: bthomehub@btbroadband.com

Password BT.

Re: What is an acceptable speed for SH2 and a gigabit line ?

licquorice — Tue, 06 Sep 2022 14:05:07 GMT

Bear in mind FTTP is a heavily contended service, 30 customers share 2.5Gbps backhaul.

Re: What is an acceptable speed for SH2 and a gigabit line ?

Checked2013 — Tue, 06 Sep 2022 15:23:12 GMT

Seems to be posting, but never seems to want to find a solution: https://community.bt.com/t5/BT-Devices/BT-Smart-Hub-3-and-Complete-Wifi-2-Release-and-Availability/m-p/2245367#M27924

Re: What is an acceptable speed for SH2 and a gigabit line ?

Checked2013 — Tue, 06 Sep 2022 15:29:15 GMT

@licquorice

Bear in mind FTTP is a heavily contended service, 30 customers share 2.5Gbps backhaul.

Do you any evidence that this is a real world issue when it comes to speed with FTTP from BT? I know a lot of towns have large coverage now and if this was the case of this issue would we not be flooded on this forum of people complaining of slow speeds?

Re: What is an acceptable speed for SH2 and a gigabit line ?

licquorice — Tue, 06 Sep 2022 15:38:18 GMT

I have absolutely no idea if it causes any problems in the real world. I'm just stating facts. If all 30 people are maxing out their connections you won't get 900M each, its simple maths.

In the real world, it is extremely unlikely everybody will be maxing their connections simultaneously in fact I would be extremely surprised if anybody ever used 900M in a domestic setting at all.

People run speed tests and then complain they are not getting the speed they are never likely to get anywhere near needing in any case.

I'll get my flameproof coat.

Re: What is an acceptable speed for SH2 and a gigabit line ?

archiveking — Tue, 06 Sep 2022 16:00:44 GMT

I am getting 900 MB to the ONT at my house. The BT Engineer and two brand-new units from BT have been unable to improve the speed inside the house. It seems that I am not alone and the smart hub two is simply not good enough to deliver speeds in excess of 500 using a cable or 350 for Wi-Fi. Much longed for SM3 seems a distant hope. I could switch to another branded hub but need my digital phone for essential purposes.

Re: What is an acceptable speed for SH2 and a gigabit line ?

archiveking — Tue, 06 Sep 2022 16:02:21 GMT

Well judging from the number of youtube videos of people complaining about the SM2 i think it is widespread. No one here has answered by saying they are getting a really fast speed using their SH2

Re: What is an acceptable speed for SH2 and a gigabit line ?

archiveking — Tue, 06 Sep 2022 16:04:38 GMT

It's not a question of "needing" - it's a question of being charged for a 900mb line and only getting half the advertised speed. They aren't interested in their speed guarantee - maybe Ofcom will be?

Re: What is an acceptable speed for SH2 and a gigabit line ?

licquorice — Tue, 06 Sep 2022 16:06:03 GMT

@Have you tried connecting directly to the ONT as suggested by@@pippincp in message3 to prove the bottleneck is the SH2?

Re: What is an acceptable speed for SH2 and a gigabit line ?

archiveking — Tue, 06 Sep 2022 16:09:30 GMT

The BT engineer did that when he was here - he then connected 2 new SH2's and neither could get more than 500mb with a direct cable. SH3 coming soon but in very limited numbers was whispered.

Re: What is an acceptable speed for SH2 and a gigabit line ?

pippincp — Tue, 06 Sep 2022 17:31:40 GMT

Just as a matter of interest have you or an Openreach engineer tried changing the ethernet cable from ONT to Hub?

Re: What is an acceptable speed for SH2 and a gigabit line ?

dave44 — Tue, 06 Sep 2022 21:28:06 GMT

I can’t see it being the Ethernet cable at fault as they only connect at 10/100/1000. To get 500Mbps through it, it’s clearly connected at 1000Mbps.

Re: What is an acceptable speed for SH2 and a gigabit line ?

pippincp — Tue, 06 Sep 2022 22:01:10 GMT

@dave44Just because you can't see it doesn't rule it out as being the problem. It has been reported as a fix before.

Re: What is an acceptable speed for SH2 and a gigabit line ?

gosforth — Wed, 07 Sep 2022 01:22:58 GMT

ONT connected with supplied "RED" cable to SH2, from which "Yellow" cable is feeding directly my AIO PC...

Download speed 910 Mbps - 1.2 Gbps on Fast.com

Upload speed 95-113 Mbps on Fast.com

Ping 5 ms / 8 ms unloaded/loaded...

Obviously, Wifi is another story...

WiFi on less crowded channel ( 5 Ghz) directly on SH2 5: up to 350 Mbps download

WiFi on third party router (in separate setting behind SH2, connected by CAT 5E cable):

5 Ghz band (channel 64 in 80 Mhz channel width,for example): up to 450 Mbps dowload

5 Ghz higher band (channel 120/122 with 80 Mhz channel width, for example): up to 690 Mbps download.

All wifi somehow align upload speed approx 110 Mbps

For sure, it's possible to get maximum speed on wired connection, even with SH2

Unfortunately, WiFi part of SH2 will NEVER provide sufficient speeds, due as SH2 in general using only 4 (previously 3) sets of channels at 5 Ghz spectrum, and especially in urban areas, this is already really congested, and there will be plenty things,which will interfere with it.

Third-party routers could be solution, or, if (question is when - 2022? 2023?) wil be avilable SH3 with WiFi6 standard, might be solution...

Please to be aware, as some functions, like Digital Voice, or BT TV Box Pro Internet stream are unlikely to works with 3rd party routers.

To try PC directly connected to ONT is first way how to determine, if SH2 is problem, or not.

Also, PC's LAN card might be somehow bottleneck, or cable, if used older specs, or, even if there is wrong instalation...

Re: What is an acceptable speed for SH2 and a gigabit line ?

archiveking — Wed, 07 Sep 2022 08:46:39 GMT

thanks ! most helpful