50M : Poor VM Connection, strange TBB quality monitor etc..

[Chrysalis]

interesting, good that you have a tech who is working hard to fix, I am very curious what the issue is if its found out.

[Rashboots]

Right gents... These are the stats for the SH's (PT hasn't been to take it away yet)

First are my own SH's stats:



Now for the test SH stats:




Power levels are a bit high because of the 4-way splitter, but they are stable...
(My SH top, Test SH bottom)

[img]Download Failed (1)[/img]

[Sephiroth]

In a well performing environment, the PT would expect to see those results. They are mutually consistent.

I noticed that the upstream power has fallen by 4 dBmv (downstream has risen as expected). Maybe they've solved the original upstream impairment. If the problem returns, note the upstream power. I keep regular records of my power levels.

[Rashboots]

I will keep a record Seph Anything to help figure out what the issue was/is.

Graham (PT) phoned last night and said that he would be coming round tonight to remove the test SuperHub and leave it to see what happens when it's all back to my normal setup.

I can't wait mind, I'm sick of all the cables, the area where the superhubs are looks like spaghetti junction!!

[Sephiroth]

BTW, I noted that both SHs share all the same channels in your segment.

But I noticed this:

You have SEVEN downstream channels. When you first posted, you had SIX.

He has SIX.

Ask him to find out what's going on, and to explain the drop in Upstream power. He might not be able to do thatyon the spot. But worth a serious question.

[Qtx]

Mark Wilkin has posted on the VM forums today:

Hi we've made some tweaks to our core network routing that should hopefully improve things and we're going to monitor the situation over the next few days so if you could continue to give us feedback on this we'd appreciate it

Not sure if this is related to the Croydon area network issues in the same thread or something else. Don't want to speak too soon but the last 24 hours my connection has been better than any moment in the last 6 months. Oversubscribed UBR fix date is still 3 months away though.

Probably coincidence. Would be typical for VM to find a major core routing problem and fix it 1 week before all my services are cut.

[thenry]

^ fail. wrong thread. ^

[Qtx]

Originally Posted by thenry

^ fail. wrong thread. ^

Doh!

[Rashboots]

Originally Posted by Sephiroth

BTW, I noted that both SHs share all the same channels in your segment.

But I noticed this:

You have SEVEN downstream channels. When you first posted, you had SIX.

He has SIX.

Ask him to find out what's going on, and to explain the drop in Upstream power. He might not be able to do thatyon the spot. But worth a serious question.

I also noticed this... When I asked him he said he wasn't sure.

He's swapped my old SH for a new one as he thinks that's what's been causing the issues.

he's left the test SH in for the time being, and is either taking this out tomorrow, or leaving it in over the weekend to monitor it. But I'm hopeful that the issue has been sorted, although I'm still not sure what it ACTUALLY was!

I'll ask him tomorrow if he found out the answer to the number of downstream channels, or Monday, depending on when he comes to take away the test SH.

This new SH only has 6 channels:

Locked 32 323000000 Hz QAM256 5.7 dBmV 39.9 dB 169 0
Locked 27 283000000 Hz QAM256 8.1 dBmV 42.2 dB 205 0
Locked 28 291000000 Hz QAM256 8.1 dBmV 42.1 dB 216 0
Locked 29 299000000 Hz QAM256 7.5 dBmV 41.5 dB 257 0
Locked 30 307000000 Hz QAM256 6.5 dBmV 41.3 dB 271 0
Locked 31 315000000 Hz QAM256 6.3 dBmV 40.4 dB 155 0

[qasdfdsaq]

If the DS power is now +8 after an extra 3-4dB attenuation from the new splitter does that mean they were +11-12 before? That's way out of optimal range, and enough to stop some crappier modems working entirely.

[Sephiroth]

What Qasi says.

[Rashboots]

Back again!
It's a good job the PT did leave the test hub in the house...
At the moment, we currently have nothing connected to the test hub, everything is connected to OUR superhub, which was brand new as of Thursday, but the yellow bit has started to rise again! So it's not the superhub...

Could it possibly be something that's connected to the superhub that's causing this? My laptop has been on all night wirelessly connected to my Superhub, but that's it. Curious why it always happens at 6am though :-/

TEST HUB
[img]Download Failed (1)[/img]

MY HUB
[img]Download Failed (1)[/img]

[Sephiroth]

Now - that's important. Ae both hubs still on the same channels as before (Modem stats)?

Are thry both plugged into the same mains block?

Are they both more or less in the same place?

[Rashboots]

Are they both plugged into the same mains block - yes
Are they both more or less in the same place - yes, haven't even been over in that direction, nor has anyone else.

Are they both on the same channels as before... Lets have a look!

---------- Post added at 15:15 ---------- Previous post was at 15:09 ----------

Test SH downstream:
Locked 30 307000000 Hz QAM256 5.4 dBmV 40.9 dB
Locked 27 283000000 Hz QAM256 7.2 dBmV 42.5 dB
Locked 28 291000000 Hz QAM256 7.0 dBmV 42.2 dB
Locked 29 299000000 Hz QAM256 6.4 dBmV 41.9 dB
Locked 31 315000000 Hz QAM256 5.7 dBmV 40.8 dB
Locked 32 323000000 Hz QAM256 5.0 dBmV 39.9 dB
Upstream:
Locked 3 27400000 Hz ATDMA 47.3 dBmV 16QAM 6400000 20480 Kbits/sec


The new (own) superhub is on the same channels as it was when I last posted...
Downstream
Locked 32 323000000 Hz QAM256 5.6 dBmV 39.9 dB
Locked 27 283000000 Hz QAM256 7.9 dBmV 42.4 dB
Locked 28 291000000 Hz QAM256 7.8 dBmV 42.2 dB
Locked 29 299000000 Hz QAM256 7.3 dBmV 41.6 dB
Locked 30 307000000 Hz QAM256 6.5 dBmV 41.4 dB
Locked 31 315000000 Hz QAM256 6.3 dBmV 40.9 dB

upstream...
Locked 2 35800000 Hz ATDMA 47.3 dBmV 16QAM 6400000 20480 Kbits/sec

---------- Post added at 15:25 ---------- Previous post was at 15:15 ----------

P.S. - I hope this is giving everyone reading this as much amusement as it is me :-D It's like my little mini project now, trying to get my internet back to how it was before September!

[Sephiroth]

What time did you switch what on that is connected to own SH?

What's attached to the VM SH and when is that switched on/off?