In reply to a post by richi:

I dare say it varies by location.

It's localised congestion, as just confirmed, and it seems to affect both TT business and TT residential when it happens. I never had congestion issues in my area.

In reply to a post by IceFreak2000:

The underlying issue is congestion at the exchange, so is largely OpenReach's problem, but TTB have their fair share of blame in this

Localised exchange congestion on TalkTalk LLU is TalkTalk's problem, not Openreach's.

Are you on adsl and is fibre coming to your area? Fibre take up may reduce adsl congestion.

This is a fibre connection; during the day I will get speeds around the 70Mbps mark which then drop through the floor around 18:00; once speeds get below 0.5Mbps the packet loss is nearing 80% and the connection is all but unusable for even basic HTTP traffic

In reply to a post by Oliver341:

In reply to a post by IceFreak2000:

The underlying issue is congestion at the exchange, so is largely OpenReach's problem, but TTB have their fair share of blame in this

Localised exchange congestion on TalkTalk LLU is TalkTalk's problem, not Openreach's.

As the end user is on fibre, it is possible contention on the Openreach GEA-FTTx network between the DSLAM and the handover point is causing the problem, but such contention is a relatively rare phenomenon. It is more likely any contention effects are from insufficient capacity on TalkTalk's backhaul from the handover point to their core network.

Right, but if you're truly buying a "business" service, your line should have been provisioned as "Elevated Best Effort" (EBE) or whatever TalkTalk's equivalent is called.

It's inconceivable that local congestion should slow you down this much if it was provisioned correctly, no?

I know how irritating it is when people reply in a forum like this to tell you to do things you've already done, and at the risk of sounding like a stuck record, suggest you insist that TTB check that you're correctly provisioned for your traffic to be "high priority", "elevated", "pro" or whatever jargon TT uses.

In reply to a post by richi:

Right, but if you're truly buying a "business" service, your line should have been provisioned as "Elevated Best Effort" (EBE) or whatever TalkTalk's equivalent is called.

Given that TT residential connections without congestion run at line speed 24/7 on uncongested exchanges, it is conceivable residential and business connections are provisioned the same way.

Edited by Oliver341 (Tue 13-Oct-15 17:34:18)

I don't follow your logic. If there's no congestion, why would priority influence throughput?

In reply to a post by richi:

I don't follow your logic. If there's no congestion, why would priority influence throughput?

There is congestion, and by my logic residential and business connections are affected equally by it.

Judging by what TTB resellers say, traffic for the TTB service is prioritized over the domestic traffic. There may be more than one level of business priority, but I'm not clear on that (Pulse8 talk about "high", "higher" and "highest" levels, so perhaps there are four levels in total, including domestic).