BT downstream line rate 80, downstream sync speed 62

I've been an Inifinity 2 customer for a few years and was initially getting high speeds in the 70s, but over the last few months this has reduced to 58Mb, with a maximum downstream sync speed now at 62Mb and no change when plugged directly into the master socket with the face plate off.

I've done all the home checks which showed no problems. BT Support have been less than helpful.

My hub log follows:

Product name:
BT Hub 6A
Serial number:
+084319+NQ62429502
Firmware version:
SG4B1000B522
Firmware updated:
15-Jan-2018
Board version:
1.0
Gui version:
1.64.0
DSL uptime:
6 Days, 11 Hours 43 Minutes 5 Seconds
Data rate:
20.00 Mbps / 62.61 Mbps
Maximum data rate:
30293 / 88631
Noise margin:
7.2 dB / 7 dB
Line attenuation:
12.2 dB
Signal attenuation:
VPI / VCI:
0/38
Modulation:
G_993_2_ANNEX_B
Latency type:
Fast Path
Data sent / received:
3076 MB Uploaded / 42996 MB Downloaded
Broadband username:
[email protected]
BT Wi-fi:
Active
2.4 GHz wireless network name:
ASUS
2.4 GHz wireless channel:
Smart (Channel 1)
5 GHz wireless network name:
ASUS
5 GHz wireless channel:
Smart (Channel 36)
Wireless security:
WPA2 (Recommended)
Wireless mode:
Mode 1
Firewall:
On
MAC address:
90:4D:4A:32:E7:A7
Software variant:
-
Boot loader:
7.33.1


Thanks for any advice

Donald

Maybe the DLM is seeing high enough levels of errors that it is slowing you down to reduce the error rate, i.e. ensure that data sent across is error free and thus avoids delays due to retransmits or drop outs in video playback.

If the drop is speeds coincide with the use of the Hub 6A then using a different modem to feed the Ethernet WAN port of the Home Hub may be the answer to improving things e.g. bridge modems like HG612, TP Link W9970 that have Broadcom chipsets, might help.

Yes, like Andrew has said, DLM looks like it has increased interleaving/the downstream noise margin to try and keep the line stable/error free. If what Andrew has said doesn't work, try using a landline phone, and dial 17070, then select option 2. See if there's any noise on the line (do this with the phone connected to the test socket like your Hub is now).

If there's noise, report a telephony fault to your ISP.

Edited by deleted (Thu 08-Feb-18 20:03:36)

That's if his telephone provider is also BT.

Edited by deleted (Thu 08-Feb-18 20:03:46)

OK I purchased a HG612, rev 3B. How do I set that up with my Homehub - is there a guide anywhere?

(I tried quiet line - seems very quiet to me)

Do you know whether or not it is unlocked?

Even if locked if its in default modem (bridge) mode, should be plug into line, see the VDSL2 sync LED is happy and then plug into the Ethernet WAN (EWAN) port on the home hub.

If unlocked all depends on the state it was left unlocked in, since it can run as a full modem/router (just no wireless)

You can�t use an external modem with the Hub 6 (smart hub). You need a Hub 5 or earlier to do this.

Or one of the �made for FTTP� versions .... branded �Ultrafast� on the front.

Like this on the bay of fleas ... https://m.ebay.co.uk/itm/BT-Ultrafast-Smart-Hub-Rout...