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Any idea what's going on here? Weird BQM results


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Just had a look at the thinkbroadband site as I was actually about to delete the plot, and I saw something strange - a minimum latency hike, but also much more jitter/far less stable average latency. As you can see by a lack of red at the top of the graph when it occurs there was no resyncing, so my modem hadn't rebooted itself (nor did I reboot anything myself).

 

I have never seen this even once in my 17 months with BT Infinity. My green base latency is always there around the 7ms mark, usually with barely any yellow (unless I was using 100% sliders like today), and the blue line is always basically invisible. I did a ping diagnostics test on the R1 this morning and it was between 7.4 and 8.1ms, as you'll see in the second screenshot. Now it's as you'll see in the third screenshot.

 

Surely my internet isn't just taking a dump right? It's starting to look more like Virgin Media cable :/

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Ran another ping diagnostic test and got the same 11-17ms~ after rebooting my R1, so I rebooted the modem and I'm back to 7ms. Confused.com ¯\_(ツ)_/¯

 

My modem had been running for 8 days. Is there any reason why it would go from giving me low stable latency to suddenly worse performance like that?

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sometimes it just needs a resync mate. Glad yours is ok and this is mine!...........

 

 

f47d148f647f0ec4683a391a080f4d148607fed9

I always got the impression xDSL modems should be just left on in order to prevent interleaving, or the DLM interpreting reboots as faults. Never heard of issues like that needing to be kept in mind on cable, although to be fair cable had the distinct honour of being crap 24/7 lol. Idk, maybe I'm just paranoid and a reboot every few days is fine. Just seems weird the min latency would suddenly shoot up like that without losing sync!

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the rule of thumb is it should be left alone unless you notice something like what you did and then it does not hurt to try a resync.........but remember this carefully.................when you switch off your modem to resync leave it off for about 25-30 mins so dlm does not see it as a line fault. You will be ok on this occasion but leave it 25-30 mins if you do it again.

I always got the impression xDSL modems should be just left on in order to prevent interleaving, or the DLM interpreting reboots as faults. Never heard of issues like that needing to be kept in mind on cable, although to be fair cable had the distinct honour of being crap 24/7 lol. Idk, maybe I'm just paranoid and a reboot every few days is fine. Just seems weird the min latency would suddenly shoot up like that without losing sync!

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