Hi All
Over the last 48 hours Ive seen increasingly frequent periods of latency and packet loss making maintaining a connection almost impossible at times, so bad its driven me to post here:
48Hrs:
30Days:
It seems to be occurring about 4 hops out suggesting its nothing to do with my end so I see little point posting my signal levels.
This seems to happen from time to time then settle down for months. about 8 months ago I requested a new modem to make sure it wasn't the cause. The problems persisted despite the new modem.
What convinced me that the modem was at fault, was that it would intermittently stop responding to pings locally to 192.168.100.1. Even the new modem still does it. It stops pinging but continues to route packets and provide internet access. Why?
Can anyone assist? I dont get very far contacting you by phone.
Regards
BZ
Thanks Ashleigh
Here is an update on the situation:
On the 15th the VM Engineer arrived. He said he would perform an external test first before coming inside. He disconnected the internet for about 5 minutes and then reported he had found an earth fault and is going to recommend the external cable be replaced. I was dubious that this was the cause, but was happy a fault had been detected.
The cable was scheduled to be replaced on the 28th, between 8 and 1. I took this to mean 08:00 and 13:00 and by 19:30 had chalked it up to a no-show, when the contractors turned up to replace the cable!.
The contractors said they tried to minimise downtime by running a new cable first but failed, and had to use my phone line to pull a new phone+internet cable. In the process of doing this they reported they found a possible cause, the existing internet cable looked like it was never installed properly in the first place and was twisted and under tension, another good sign.
After 45 minutes of downtime, the new internet cable was connected and about 15minutes later I rebooted the cable modem to let it re-settle. I will let the results speak for itself:
The difference is clear as day! There is no real difference in "speed" but now I do not experience any 30 second lag spikes at random times!.
Oh and apparently I still need to wait for Virgin to reconnect my landline phone, as the contractors couldn't do that themselves. Its low priority as we hardly use it, but i thought i would mention it in case it dropped off the radar. The main problem seems to be fixed!!!! Thankyou and well done to everyone involved in this thread and the related works! Issue resolved.
Regards
BravoZero
Hi Guys
I regret that just short of a year since this issue was fixed, it seems to be getting progressively worse again, to the point where its almost unusable. Possibly worse than before.
Can we get the checks performed again?
My bandwidth usage is low yet I experience regular periods of lag, where pings reach 500ms for up to a minute, before they settle down again. This can happen as regularly as every 2-3 minutes!
No engineer ever turned up to reconnect the phone line so I think we can probably cancel that now. But getting the broadband fixed is a priority.
Regards
BZ
Hi All
The engineer attended, and swapped a few attenuators and performed a full reset on the SuperHub, which seemed to have a positive effect for a few days, before it progressively got worse again.
After raising the issue again over the phone on Friday, the agent advised they needed the Superhub in router mode for them to run tests. I couldn't do that at the time, but was able to later in the evening.
As soon as I placed the Hub in Router mode Friday evening, the lag spikes disappeared! I left it in router mode overnight and switched it back to Modem mode Saturday afternoon. Again, the connection remained stable throughout the night until Sunday morning, when the lag spikes returned.
So, I placed the Hub into router mode for a few minutes, then back into Modem mode, and guess what, again, the connection has been stable for another 24hrs ish.
More interestingly, like I mentioned earlier in this very thread, the pings to 192.168.100.1 also remain stable, up until the point where the Lag spikes are experienced.
This is a graph of the ping monitor to google DNS. You can see the lag spikes before entering router mode and then them returning around 48hrs later
Interestingly, look at what the ping monitor to 192.168.100.1 shows:
This poor (or lack of) response to the superhub itself also prevents me from loading the router management page. I'm sure its related to the problem I'm experiencing. The problem is, I cannot interrogate the SuperHub any more than I am already. This is what I need Virgin Media to do.
I feel there could be a problem with the software running on the SuperHub, or its doing something like preventing DDoS or other Firewall like features which after a day or two, start to cause a problem. Its almost like there is a memory leak.
At least, for now, I have a workaround, toggle the Hub over to Router mode and back again every 24-48hrs. Its far from ideal, but its better than suffering with constant lag spikes.
Regards
BZ
