When Coms migrated me to their network my upload speed halved to 0.45Mbps, and nothing they can do (line profile changes, interleaving on/off) has restored it (only made the line less reliable). PaulComs was helpful and said:
Your connection may have been on BE/02 prior to migration which has now closed as a network Its a great shame as I used to work for ADSL24's previous underlying supplier adn set BE up as a carrier partner. Their network and service was outstanding sadly Telefonica decided that it wasn't their core business and decided to close the network.
You now have TTB as the underlying supplier and Coms f or layer 2.
Another Coms staff member said:
Every provider has differently shaped line profiles, the upload/download speeds from the 9dB one you had with ADSL24 won't match the 9dB one from our provider
Now I'm changing providers, I don't want to pick a rotten underlying network
Although PaulComs says above I'm on TTB, a traceroute looks like Entanet:
Tracing route to www.bbc.net.uk [126.96.36.199]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 10.0.0.1
2 88 ms 87 ms 88 ms 188.8.131.52
3 86 ms 80 ms 13 ms 188-39-118-70.static.enta.net [184.108.40.206]
4 87 ms 87 ms 85 ms gi4-21.equinix.core.enta.net [220.127.116.11]
5 85 ms 86 ms 85 ms te5-3.telehouse-east2.core.enta.net [188.39.127.
6 85 ms 85 ms 15 ms te4-4.telehouse-east.core.enta.net [18.104.22.168
7 25 ms 39 ms 14 ms bbc-linx.pr01.thdow.bbc.co.uk [22.214.171.124]
8 * * * Request timed out.
9 * * * Request timed out.
10 60 ms 65 ms 67 ms ae0.er01.telhc.bbc.co.uk [126.96.36.199]
11 87 ms 87 ms 86 ms 188.8.131.52
12 87 ms 87 ms 88 ms bbc-vip115.telhc.bbc.co.uk [184.108.40.206]
What are the known performance characteristics of BT and TTB networks? Given I have a fairly poor line and Entanet has been worse than my previous experience - what am I likely to get with each of them?
I've talked to Zen so far, who tell me they use the BT network, but I'm open to going to whichever ISP does 1 month contracts and has an underlying network that'll work well for me.
Oh, and why am I moving away from Coms? Apart from slow upload speeds, my broadband is now too poor to make Skype video calls (anytime) or watch iPlayer/Netflix (evenings).