Superhub : Only 1 downstream channel

[beardsley]

Hi

I received the superhub last week as part of a XL20MB to XL60MB upgrade. My old router was not too brillient, so I decided to give the superhub a go at being a router before dumbing it down to modem only mode.

It is locking up and needing to be rebooted about once a day, (roughly the same as my old router). So far, pretty much as expected.

Usually after the reboot, it negotiates 4 downstream channels. However, last night I watched as it booted.

Before the crash it was on channels 152,153,154 and 155. Afterwards it went through a process of getting channel 5, which it almost immediately lost, then got channel 158. I was waiting for the other 3 channels to arrive, but they never did.

My question is - Should I be concerned at only having 1 downstream channel?

Before the reboot downstream channel power was a touch high at between 7 and 8, but compared to some of the reports on here, that is nothing.

Here is the config information from the superhub.

Connection

--------------------------------------------------------------------------------

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 307000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+


--------------------------------------------------------------------------------

Downstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power SNR Docsis/EuroDocsis locked
Locked QAM256 158 55616000 Kbits/sec 307000000 Hz 6.7 dBmV 41.5 dB Hybrid
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown


--------------------------------------------------------------------------------

Upstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power
Locked ATDMA 3 20480 Kbits/sec 45800000 Hz 45.3 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV



--------------------------------------------------------------------------------

Primary Downstream Service Flow
Downstream(0)
SFID 622
Max Traffic Rate 66000000 bps
Max Traffic Burst 10000 bytes
Mix Traffic Rate 0 bps


--------------------------------------------------------------------------------

Primary Upstream Service Flow
Upstream(0)
SFID 621
Max Traffic Rate 3072000 bps
Max Traffic Burst 8160 bytes
Mix Traffic Rate 0 bps
Max Concatenated Burst 8160 bytes
Scheduling Type Best Effort


--------------------------------------------------------------------------------

Current System Time:Tue May 22 11:43:46 2012

Thanks
Andrew

[qasdfdsaq]

Have you tried turning it off and on again?

[beardsley]

Originally Posted by qasdfdsaq

Have you tried turning it off and on again?

As it hangs about once a day, I am sure this will happen soon.
I did not reboot it last night as my son was in a hurry to get online to do his homework. It seems almost all the homework needs to be done online now.

[thenry]

copy and paste. no im only joking lol

we've seen afew SHs now locking onto 1 down channel. the others have all locked onto docsis non 3 which is indicated by the colour of the top light on the side of your SH. blue = docsis3. green = docsis non 3

[jempalmer]

Yes, my blue light has been flashing for some time. Still they won't pull over

[Chrysalis]

its still on docsis3.

only one channel indicates something isnt working right, try rebooting and if that doesnt work then report to VM as a fault.

Whats interesting is you probably have channel range from 152-158 6 channels but even the first time you only locked onto 4 channels.

[beardsley]

Originally Posted by Chrysalis

its still on docsis3.

only one channel indicates something isnt working right, try rebooting and if that doesnt work then report to VM as a fault.

Whats interesting is you probably have channel range from 152-158 6 channels but even the first time you only locked onto 4 channels.

Locked up again last night and I watched it reboot. It tried to get channel 158 again but the power level was around 50, it gave up on this and eventually settled on 4 channels 166-168 with power levels 5.7-6.7

[Ignitionnet]

Originally Posted by thenry

copy and paste. no im only joking lol

we've seen afew SHs now locking onto 1 down channel. the others have all locked onto docsis non 3 which is indicated by the colour of the top light on the side of your SH. blue = docsis3. green = docsis non 3

The Superhub can't lock onto non-DOCSIS 3 channels and stay there, the provisioning system prevents it.

Blue = channels bonded, green = not.

[Chrysalis]

Originally Posted by beardsley

Locked up again last night and I watched it reboot. It tried to get channel 158 again but the power level was around 50, it gave up on this and eventually settled on 4 channels 166-168 with power levels 5.7-6.7

Sorry I meant 7 channels, bad maths.

So its 166-168 not 156-158?

[beardsley]

Originally Posted by Chrysalis

Sorry I meant 7 channels, bad maths.

So its 166-168 not 156-158?

A couple of days ago it was on 152-155. Spent a day on 158. Now it is 165-168. If things run to form, it will probably need to be rebooted in the next hour and we might get a different set.