Forum Discussion
The downstream power level is fine. Don’t worry about it. The upstream QAM is a potential problem. The Networks Team should be the ones looking at this, not a field tech. If there is noise on the line, Networks will know about it as this is alarmed. However, the QAM fluctuation is normal DOCSIS behaviour because the mission is to set the data density to a level that maintains data integrity; this comes at a cost in terms of upstream speed.
The field tech will prolly check that there is no noise induction from your end. Therefore a quickie check with your neighbours might assist to see how their connections are performing.
- madmanx10 months agoDialled in
Thanks for replying seph, nice to see u back, so is the downstream power levels at 10.3 OK? I though? they have to be under 10? Also the upstream qam is behaving a little better now all on 64qam but they could change especially if it rains then it starts playing up again for reason? Is that normal? I've checked the cable connection outside my house where the drop cable connects to the cable that goes inside my house seems to be OK it is inside the brown omnibox, I don't know if the connection outside should have some waterproof tape on it ot not to keep it waterproof?
I rang virgin to change appointment as I can't do Monday and It won't let me change it but when it done its checks it said there is an intermittent problem with my connection?
Strange thing is is that the thinkbroadband quality monitor looks fine and the upstream qam seem fine apart from some t3 time outs so should I let technician Come to check connection? Or shall I cancel it If the connection seems ok? What do u recommend seph?
- madmanx10 months agoDialled inWelcome back!Sign in to view or modify your Hub 3.0 settings.
Password Show Router statusUpstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID1 23599975 34.5 5120 64 qam 5 2 36600000 34.8 5120 64 qam 3 3 30100000 34.5 5120 64 qam 4 4 43100015 34.8 5120 64 qam 2 5 49600000 35.3 5120 64 qam 1 Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts1 ATDMA 0 0 2 0 2 ATDMA 0 0 1 0 3 ATDMA 0 0 4 0 4 ATDMA 0 0 2 0 5 ATDMA 0 0 0 0 - Sephiroth10 months agoAlessandro Volta
Perhaps you could look int the drop box outside your property to see if it's waterlogged. If s, that's you upstream shot till it dries out and then electrolytic micro-reflections can occur.
Also I recommend checking with the neighbours. If they have the same problem, then it could be water getting into the nearby cabinet.
- madmanx10 months agoDialled in
Hi thanks for reply seph, no water in omnibox that I can see, most of my neighbours aren't on vm but I will try and find one and ask them.
- legacy110 months agoAlessandro Volta
15 dBmV can be fine on downstream mostly the your upstream is the problem the Modulation can change so fast that BQM might not show a drop or spike even when T# show
- madmanx10 months agoDialled in
Hi legacy1, Oh I didn't know that the downstream power levels can go up to 15dbmv and still be OK, interesting..
Related Content
- 8 months ago
- 7 months ago
- 3 months ago