View Full Version : 50Mb Connection issues at times
Sometimes i have a strange problem i think someone in another post got it right, it " Snoozes the modem" i have to unplug and plug it back in and all is ok, now lately it doesn't do it that regular Saturday was a bad day i gave up with the internet as it wouldn't stay connected but since then its been pretty good.
I just wanted to put my levels up and see what you chaps think.
http://img40.imageshack.us/img40/613/99075932.jpg (http://img40.imageshack.us/i/99075932.jpg/)
Your SNR ( RXMER ) is low so a call to the 50Mb support line is in order, what about the Upstream as that is just as important.
50Mb support line number.
0800 052 0431
Funny thing i have had 2 visits and none of them have picked up on that snr.
this the upstream
Power Level
(dBmV) 51.25
Just phoned them and they are saying there is a issue in area something causing the low snr but there is no date of when its going to be fixed, don't sound good.
Funny thing i have had 2 visits and none of them have picked up on that snr.
this the upstream
Power Level
(dBmV) 51.25
Just phoned them and they are saying there is a issue in area something causing the low snr but there is no date of when its going to be fixed, don't sound good.
So it is an issue on your BSR but that is not the low SNR on your modem that is a local issue between you and the cabinet at the top of the road, if it continues give them another call.
Its been better of late Saturday was a washout i gave up on rebooting the modem as it would drop instantly, but its been pretty good since then went of once yesterday, he did say the problem was causing slower speeds but they still holding around 5.5mbs download.
It seems fine ping side pinged bbc and jolt they both gave back similar results as - min 15ms max 17 average 16
Its been better of late Saturday was a washout i gave up on rebooting the modem as it would drop instantly, but its been pretty good since then went of once yesterday, he did say the problem was causing slower speeds but they still holding around 5.5mbs download.
If your speeds are holding then leave it for the moment but keep an eye on those levels.
Hmmm thought i would try some speeds and they seem terrible today currently hitting maximum of 1130 kbs, so looks like there is a area issue.
This sounds similar to the issue I am having:
http://www.cableforum.co.uk/board/12/33652665-50mb-broadband-issues.html
Basicly from the day I had 50MB installed, my net dies nearly completely for 5 or so hours. It wont last 7 days before the issue repeats.
My Computers, The Cable Modem, Drop Cable and Street Cabinet have been ruled out by Virgin and they have began to monitor the UBR that im connected to. They are considering moving me to a different UBR.
Is this similar?
My issues don't stay off though as soon as i reboot the modem my net is fine, these are my levels today.
Power Level
(dBmV) -4.75 -4.61 -4.56 -4.41
RxMER
(dB) 29.27 -29.53-29.81-29.90
those downstream
Power Level
(dBmV) 50.25
Upstream.
Yeah looks like a different issue. Do you know that virgin updated the Cable Modem config files recently? Could that have anything todo with it? Surpose it's more of a Firmware issue?
My connection has gone crap again over the past 3-4 days here are the levels tonight am lucky if i can hit 900kbs download
Power Level
(dBmV) -5.33 -4.81 -4.92 -4.63
RxMER
(dB) 28.87 29.14 29.48 29.62
Upstream
Frequency
(Hz) 47400000
Ranging Status
Modulation 16QAM
Symbol Rate
(KSym/sec) 2560
Mini-Slot Size 2
Power Level
(dBmV) 51.00
Are those looking crap again.
monkey2468
17-08-2009, 22:17
Your levels have dropped a lot and the snr is very poor. Definatley need a tech. Your power level should be around 0, and your snr a minimum of 36db.
Ill give them a ring tomorrow this is getting beyond a joke now, it goes ok for 2-3 days then its like a dog again, half wishing i had stopped on my 20mb connection now.
Had a tech out today and he screwed somet on the back of the modem it says 4db on it i guess its to help with the levels here they are now.
Power Level
(dBmV) -11.00 -10.69 -10.35 -10.28
RxMER
(dB) 28.75 29.14 29.40 29.62
and downstream
Power Level
(dBmV) 53.50
Do they look any better.
Power Level
(dBmV) -11.00 -10.69 -10.35 -10.28 To low the closer to Zero the better
RxMER
(dB) 28.75 29.14 29.40 29.62 To low borderline best is around 40
Do they look any better.
That engineer has not done a very good job, appears to be a make do and mend effort.
You need to call again to get this sorted out.
Ignitionnet
20-08-2009, 17:47
Had a tech out today and he screwed somet on the back of the modem it says 4db on it i guess its to help with the levels here they are now.
Power Level
(dBmV) -11.00 -10.69 -10.35 -10.28
RxMER
(dB) 28.75 29.14 29.40 29.62
and downstream
Power Level
(dBmV) 53.50
Do they look any better.
What an idiot. Your power levels were on the low side to begin with, he's made them lower still.
He said he was going to give me a call tomorrow to see what has happened we have already had one dissconection so far, they have had 2 months to sort this issue and still no closer to it, the speeds are good its just the net drops one day it can be 13 times, another 2-3 then another day none at all more frustrating than anything, starting to think about downgrading back to 20m which was stable.
I explained about posting on this forum and members saying my power levels were to low his reply was different areas have different levels due to different network, he said your levels might seem low in one area but for this area is good.
I explained about posting on this forum and members saying my power levels were to low his reply was different areas have different levels due to different network, he said your levels might seem low in one area but for this area is good.
He is talking through his ass, if I answered the phone to you and saw those power levels then right after confirming them with yourself I would book you another engineer visit.
That's exactly what happened when i phoned, the chap i spoke to said your power levels are not right i will book you a engineer out to have a look at the box in the street( that's what he thought it could be) i told the chap this today but he never checked as far as i know anyway.
That's exactly what happened when i phoned, the chap i spoke to said your power levels are not right i will book you a engineer out to have a look at the box in the street( that's what he thought it could be) i told the chap this today but he never checked as far as i know anyway.
He took the easy route of a quick fix and stuck the attenuator on the back instead for a quick getaway, when he rings you tomorrow ask him for the number of Lord Lucan while he's on.:D
Had a tech out today and he screwed somet on the back of the modem it says 4db on it i guess its to help with the levels here they are now.
Power Level
(dBmV) -11.00 -10.69 -10.35 -10.28
RxMER
(dB) 28.75 29.14 29.40 29.62
and downstream
Power Level
(dBmV) 53.50
Do they look any better.
What the engineer has done here is exactly what the others have said He has added what is called an attunuator to a line which is poor anyway. Why is this important? Attenuation basically is like adding a dam to a river it reduces the power of the signal coming in(This has no effect on the speed of your broadband) which is the total opposite of what you needed. What he should be assessing is the incoming noise levels and if they are too low then he needs to disconnect your line from the box at the end of your road and add signal generator to the line and assess if the signal is experiencing unexpected loss to your home, if it is your line from the box to your home that has too much attenuation on it, it will need to be replaced.
If the line is fine and as he seems to believe that those signals are good for the area it would suggest a fibre problem or a transmitter problem to the box at the end of your road, if its fibre then it is losing its reflection properties which could be a major project but still needs to either have the ends cleaned or the fibre itself needs to be replaced. If its a transmitter problem then that would need replacing. I wouldnt be suprised that this is the case and the engineers are aware of it and this engineer has palmed you off till they can schedule some down time to resolve the issue to the box at the end of your road.
That's a great response explaining things to me but to be fair to the tech since he done that i had 1 blip and it hasn't dropped yet, will see how it goes over the weekend.
That's a great response explaining things to me but to be fair to the tech since he done that i had 1 blip and it hasn't dropped yet, will see how it goes over the weekend.
the last couple of days i have has speed around most of the time. is there a trial going on ?
www.speedtest.net][IMG]http://www.speedtest.net/rank/1588296361 this link might work better
www.speedtest.net][IMG]http://www.speedtest.net/rank/1588296361
Zhadnost
21-08-2009, 14:00
Make do and mend? Those levels look worse. (well, the SNR is unchanged).
God knows what's going on then as my speeds are super stable now 6150kbs, not had one drop in connection so whatever its done its running great he did also replace all connections coming into the room so maybe one of those was dodgy ? as said will see how it goes over the weekend.
God knows what's going on then as my speeds are super stable now 6150kbs, not had one drop in connection so whatever its done its running great he did also replace all connections coming into the room so maybe one of those was dodgy ? as said will see how it goes over the weekend.
Its entirely possible that one of the connections was an issue here offering too much attenuation to the line coming in with temperature changes in the room we have to remember that this side is copper after all and as such can expand and contract with temperature change. When the line was tested after the connections had been replaced the engineer may have felt that the incoming signal was too powerful and then required attenuation.
Maybe someone can confirm as Im unsure of what the recieved power levels should be, I was going on what was declared in another thread of power levels. As well as a river being damned too much the river could be a raging torent and need to be damned a little(otherwise known as the signal being too hot... therefore requiring atenuation) ;)
But im happy that the situation has been resolved and Im glad i could offer a little insight into power levels ;)
I'm having the same problem. I posted my levels before but no one could see anything wrong.
I have noticed that all four of the DS are connected on the OP images
I only have 3 connected see attached image.
I'm having the same problem. I posted my levels before but no one could see anything wrong.
I have noticed that all four of the DS are connected on the OP images
I only have 3 connected see attached image.
You have 3 downstreams because you are on a Cisco uBR which only uses 3 any other posting for 50Mb which shows 4 downstreams is because they are on a Motorola BSR, we use different kit in different areas.
Well since he did that to mine its been 100% stable its not dropped once so madly it seems to have worked.
Ignitionnet
24-08-2009, 19:48
Cross your fingers...
---------- Post added at 19:48 ---------- Previous post was at 19:47 ----------
<snip>
Did you post that while high? :)
Oh well it was good while it lasted but its started dropping again, where do i stand on downgrading to 10mb for example as this is stupid they can't offer me a connection that stays.
Ignitionnet
29-08-2009, 20:33
Cross your fingers...
Sadly what he did doesn't resolve the underlying issue, a tech should be able to sort it if they do their job.
Strange i downgraded to 20mb like 3 weeks ago then decided i didn't like the loss of speed so phoned up complaining about the issues i had and the person on the phone offered me 50mb @ 20mb prices for 6 months seemed a good deal so took it.
Since then its been rock solid getting 6.3 mbs download which was never a issue the speed off it but since the downgrade and upgrade my connection has been rock solid its not dropped once.
Rather than start a new thread, mind if I join in?
Just experienced a weird polarity shift on my system, my net connection dropped out so I logged into the modem and noticed that the downstream power level was -9 when it is normally in the positive.
So I change the flylead and took out the 6dB attenuator and switched on, now it is in the +17 range so I plug the attenuator back in and I have settled at:
Down dBmV: 11.64,11.32,11.75,11.58
Down RxMer: 35.97,35.97,36.17,36.39
Up dBmV: 40.00
WA8 postcode, anything to worry about or a glitch in the matrix?
As an aside, I have noticed that the Netgear WNR2000 has not been able to automatically handshake with the modem after it drops from the net and comes back online like my WRT54GL did, I have to manually release and renew the WAN connection.
If only I could drop a cron job in there. grrf.
They have admited there is a problem in my area with low snr and they are working to fix it, my sister who lives down the road on 10mb her connection rarely goes above 1 meg atm, atleast mines nice and fast on 50 just drop occasionally, i have noticed looking at the logs its changed slightly from earlier posts are they on the right track ?
Power Level
(dBmV) -4.26 -4.08 -3.80 -3.58
RxMER
(dB) 28.87 29.14 29.40 29.62
upstream
Power Level
(dBmV) 50.00
merlintt
02-10-2009, 10:05
I`m not impressed with the 50meg service.I`m only really using it for xbox and the connection is terrible.Tried 4 routers and connecting straight to modem,makes no difference.Seriously considering going back to the 20meg service-had zero problems on xbox live on the 20meg.
If i do buy a router can anyone give me any recommendations?
My system is one xbox(most important),one PC(least important) both close enough to be wired.
I`ve had my power levels checked,had an engineer visit and tried 3 netgear wnr2000 and 1 white netgear.iI have also tried port forwarding on the wnr2000 and still get a terrible connection.
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