50M : 50 Meg Upgrade - Disappointing

[mattley]

Hi All

I've just had the 50Meg upgrade so old modem and a very old Netgear WGR614 replaced with Superhub.

Browsing's fine, Speedtest.net shows between 20 and 50 Down, with much more consistent 3 up, time of day doesn't seem to make a difference.

Streaming however is terrible. YouTube seems OK but anything else is rubbish. SkyGo and iPlayer are unusable. Even FaceTime is poor. Also I use LogMeIn Central to support clients from home and performance is noticeably degraded.


Pingtest.net shows appealing levels of Jitter anything from 4 to 28ms, again time of day seems to make no difference.

Is this a known issue with the superhub or my new package? (I believe the infrastructure is different), is there anything I can do? can I just go back to my old package before I send the old modem back?


Any advice or insight appreciated as ever.

Thanks, Mattley

[jb66]

Superhub v1?

[mattley]

From the device status page in the router

Hardware 1.03

Software V1.01.11

Thanks

[Sephiroth]

You have the new and IMO respected SH2ac.

It would seem that before your upgrade, you were on a legacy circuit that wasn't oversubscribed and when you went onto the SH2ac, you were put onto the "normal" set of frequencies that may be oversubscribed.

On the other hand, it may be some impairment on the circuit and we could quickly check that if you posted your modem upstream and downstream stats by copy/paste.

[mattley]

Would that be these, thank you.


Modem Initialisation
Stage Status
Downstream Acquisition Locked
Primary Frequency 274750000 Hz
DHCP Done
TFTP Done
Time Of Day 15:25:55 GMT
Security BPI+
Counters T1,T2,T3,T4,Sync,Resets 000,000,000,000,000,000
Internet Connection
IP Address Status
WAN IP Address 82.0.162.94
Lease Time Remaining 6 days 04h:44m:30s
Expiry Thu 19 Mar 20:10
Current Network Time Fri 13 Mar 15:25 GMT
Downstream Channels
Lock Status Channel ID Frequency Modulation Rx Power RxMER Pre RS Errors Post RS Errors
Locked 58 274750000 Hz 256 QAM -1.5 dBmV 37.1 dB 2303 973
Locked 57 266750000 Hz 256 QAM -1.1 dBmV 37.6 dB 2931 1529
Locked 59 282750000 Hz 256 QAM -1.6 dBmV 37.1 dB 6825 2164
Locked 60 290750000 Hz 256 QAM -1.5 dBmV 37.6 dB 3085 2833
Locked 61 298750000 Hz 256 QAM -2.2 dBmV 37.9 dB 8032 6870
Locked 62 306750000 Hz 256 QAM -2.2 dBmV 37.6 dB 7900 5327
Locked 63 314750000 Hz 256 QAM -2.6 dBmV 37.1 dB 4920 2065
Locked 64 322750000 Hz 256 QAM -2.9 dBmV 37.1 dB 3498 2019
To reset the Pre and Post RS error counts please use the Downstream screen under the router status screen available from the login page.

Upstream Channels
Lock Status Channel ID Frequency Modulation Tx Power Mode Channel Bandwidth Symbol Rate
NotLocked 0 0 Hz 0 dBmV 0 Ksym/sec
NotLocked 0 0 Hz 0 dBmV 0 Ksym/sec
Locked 1 46200000 Hz ATDMA 41.8 dBmV 16QAM 6400000 Hz 5120 Ksym/sec
Locked 2 39400000 Hz ATDMA 40.3 dBmV 16QAM 6400000 Hz 5120 Ksym/sec

[Sephiroth]

Those stats are OK provided that the post-RS errors are not rising. They occur at modem reset when the modem isn't in synch but should not occur in normal operation. Those are dropped data.

Next move I recommend is to post in the SPEED section of the VM Forums, with the stats, and ask specifically if there is a utilisation issue in your area. They take a few days to respond.

Cheers

[mattley]

Thank You very much for that, I've been using it quite a bit since the last reboot and the RS- numbers are the same so I'll head over there.

Thanks again.