Last week, I replaced a Fritz!Box 7490 with a new 7590. The new box struggled initially and DLM kicked in but it has now settled down at 73.2/17.3 with a downstream error rate of 0.12CRCs/min , and upstream error rate of 0.03. The biggest change is in the BQM graphs:
Speedtests are fine and I get a consistent Ping of 8. Any thoughts as to what might be causing this difference in BQM graphs? I had issues earlier this year with my 7490 when BQM showed consistent patterns of dropped packets. This disappeared shortly after my Zen line was switched to their GEA.
HD streaming etc is fine and, with the improved wifi, I get 50Mbps downstream in all parts of the house. I suspect that the issue may be down to the way that the Fritz!Box handles Pings. I have forwarded the graphs to AVM for advice.