Riddle me this...(slow internet speed)

Meddling-Monk said:
Yep yep, that's fine. They did a reset, but we just don't want to provoke the DLM unnecessarily when we power off your modem/router. (Some DLM have very aggressive views on what constitutes as a problem on the line)



Sometimes there's something in the software (table or cache somewhere inside) that has been corrupted (it happens) and needs to be refreshed or expunged so it rebuilds it anew. But it can't do that whilst there's power keeping the data alive. Hence why we are attempting the power off to get it to start fully from fresh, instead of only reset/reboot which may not touch those stuff in the modem/router.
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Ok. I'll give it a full 35 minutes power off tomorrow morning and report back.
 
So, this morning the speed is back up to pretty much where it should be (37mbps). Maybe I've lost a few Mbps to DLM from fiddling with the router yesterday afternoon, but hopefully this will go back up.

Very bizarre. Does something happen somewhere overnight or something? I've read DLM works around 3am, but I thought it wouldn't work like that (IE bump it from 10 to 37 in one night). Also, if it was DLM, wouldn't the router have showed the lower speed yesterday?

It was still slow all the way up to 11pm last night, and I haven't touched the router since mid afternoon.
 
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Jono8 said:
So, this morning the speed is back up to pretty much where it should be (37mbps). Maybe I've lost a few Mbps to DLM from fiddling with the router yesterday afternoon, but hopefully this will go back up.

Very bizarre. Does something happen somewhere overnight or something? I've read DLM works around 3am, but I thought it wouldn't work like that (IE bump it from 10 to 37 in one night). Also, if it was DLM, wouldn't the router have showed the lower speed yesterday?

It was still slow all the way up to 11pm last night, and I haven't touched the router since mid afternoon.
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Nothing more annoying than this. I had very similar issues a few years back and it took multiple visits from an Openreach engineer to fix it. Hope you speeds maintain now.
 
Ollie83 said:
Nothing more annoying than this. I had very similar issues a few years back and it took multiple visits from an Openreach engineer to fix it. Hope you speeds maintain now.
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Indeed. It's mainly because no one, not even the open reach engineers have a clue why these sort of things happen. It's like no one really knows the reason or can explain it.
 
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Jono8 said:
Indeed. It's mainly because no one, not even the open reach engineers have a clue why these sort of things happen. It's like no one really knows the reason or can explain it.
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Fairly certain that the whole network is a mystery powered by magic, well to me it is ;)
 
Jono8 said:
So, this morning the speed is back up to pretty much where it should be (37mbps). Maybe I've lost a few Mbps to DLM from fiddling with the router yesterday afternoon, but hopefully this will go back up.

Very bizarre. Does something happen somewhere overnight or something? I've read DLM works around 3am, but I thought it wouldn't work like that (IE bump it from 10 to 37 in one night). Also, if it was DLM, wouldn't the router have showed the lower speed yesterday?

It was still slow all the way up to 11pm last night, and I haven't touched the router since mid afternoon.
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My guess would be a stuck profile that wasn't updated until last night then. So instead of the issue being from your modem/router with a stuck item, it was over by the cabinet. But unlike your home modem/router (which won't clear automatically) they have built in "after x amount of time check this" and it happened to be last night when it saw that the line was clear, DLM was reset and relented and changed the profile to match the line.

Anyway, not the important thing; grats on getting your speeds back! :)
 
Meddling-Monk said:
My guess would be a stuck profile that wasn't updated until last night then. So instead of the issue being from your modem/router with a stuck item, it was over by the cabinet. But unlike your home modem/router (which won't clear automatically) they have built in "after x amount of time check this" and it happened to be last night when it saw that the line was clear, DLM was reset and relented and changed the profile to match the line.

Anyway, not the important thing; grats on getting your speeds back! :)
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Yes, you are probably right. It's just frustrating that neither openreach, nor NOW could tell me that this is what would happen. Both were adamant that I should have been back to the correct speed right away. So I just wasted an afternoon trying to fix it. If they actually knew how things worked, and told me it would be back to speed in the morning, that would have been fine.

Anyway, hopefully no more openreach engineers will cut/break my line again in future!
 
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OR engineers I remember took a beating a few years ago (when I was still with BT) from changes in OR structure or something like that. So OR engineers can be as varied as engineers from other companies that OR could employ, unlike before when they were required to know more (especially the elevated teams). Now, it's much more pot luck.
 
My(perhaps wrong understanding) is that when the engineer does a test, he uses openreach as the ISP, not the customer's ISP ? If so that might explain why he saw the 40MB, but maybe your ISP, although also notionally giving you a 40MB pipe (as seen on the router), was limiting the thruput to a lot less. Which then got raised after some time once it saw things were working properly again ?
 
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