Goes under 2 if on the right ISP and in London or surroundings. Round trip to OLT via GPON is 1.1-1.5 ms, mostly around 1.3.
This ^^
Most BT Wholesale FTTP in and around London is sub 2ms to London based servers.
Equivalent FTTC is in the 4-5ms region.
In a previous thread CarlT was monitoring his latency between home and the Nokia 7750 in the exchange and was getting between 1.1ms -1.3ms, averaging 1.2ms.
Looks like my luck ran out
Interleaving is back on lost 3 or so Mb download speed .
I mentioned this earlier in the thread but not sure if you read it...
Did you try capping the sync speed to keep Interleaving off?
It can be very effective at lowering the ES numbers enough to keep a line on fastpath.
More info in the sticky at the top of this forum section.
Speed Capping and ES Rates on a Moderately Noisy LineIt very much looks like your line is unable to maintain fastpath with full sync. That's a number of times in a short time period it has gone back to Interleaving.
If you cap the sync speed at the rate the line syncs at when interleaved you may find that's sufficient to keep ES low enough to stay on fastpath.