This is not necessarily an issue with my Vodafone naked broadband but it may be.
For the last ~11 days, my router(s) sync with the exchange fine, but the maximum attainable sync rates slowly decline over a < 3-hour period, eventually going below or close to my actual sync rate, resulting in my router disconnecting, with data sometimes stalling for a few seconds here and there just before unsyncing.
Chorus has been to my flat twice. They did a bit of work on my phone jack but say my line is fine, it must be Vodafone. Their own router disconnects like mine. We've tried two of my own routers, different phone cords, but no luck. There's no alarm nor Sky.
On Vodafone's end, they've tried me on different "stable" profiles. Interleaving's on, sync rates are much lower than I usually get, but the problem persists.
At this point, Vodafone says everything's fine on their end. Chorus says everything's fine on my end.
Vodafone's getting a third Chorus tech to look at this tomorrow...
My max upload rate always seems to be lower than my current upload rate. Max downstream's normally ~1mbps higher than my current rate and then it slowly degenerates.
Normally I sync @ 9.2mbps but it's lower right now due to my slower/stable profile at the moment: