Thanks! Yep, a Fritz! 7390, and a 90% loss of upload speed too. Complete loss of upload tones between the first and second blocks of download tones, leaving just the upload tones before the first block of download tones. 6am, when "it" appeared to happen is consistent with drops due to changes at the DSLAM here. Huawei cabinet, and 06.30 firmware at the Fritz. Should have the ordered 7490 later this week, but with same firmware will probably have the same problem. My main problem seemed to be the huge download latency spikes that accompanied the fall in the upload, in my case.
Might report it to AVM too when I get to try the Fritz! again. I thought they tested the kit with BT (but of course not the other way around), and the 7490 is certainly marketed as compatible with BT FTTC (though that probably means the faceplate and power plug!). If we have to wait for AVM to modify their firmware, we'll be waiting for (almost) ever.
We see things not as they are, but as we are . - Anais Nin
Edited by smurf46 (Mon 09-Nov-15 13:49:00)