Have had that happen 4 times in 3 years it seems to be when the modem's Bit Allocation Table gets confused
That's a shame, I guess this speed is only temporary then.
Funny you mention that, because I did a speed test either Tuesday/Wednesday morning, & I got 90.67Mb, which is about 15Mb above my normal figure.
Max as in max attainable not throughput.
There wasn't a power outage at least not to the house. Surely if mains was lost to just the cab the battery backup would kick in and there would be no loss of sync.
I was using the connection at the time, total downtime was 7 mins 11 sec.
A phone number that doesn't have FTTC reports on the checker "Sorry your cabinet is temporarily unavailable, capacity will be restored as soon as possible." Availability Date is 02-Sep-15, so it appears the cab is awaiting extra capacity or is full and a new one will be erected. It's a 288 port Huawei with at least 3 cards, probably at least 4 but can't say for sure. Sync was on the lowest end of the estimate (infact the min dropped on the estimate together with the actual sync dropping over the years) suggesting it's getting close to full if not now full.
Anyway, will enjoy the extra bit of speed while it lasts. Thanks all.