I have a Mag256 which regularly stutters/freezes (but this is not related to my Internet speed), it also takes 2 goes to turn it on, occasionally hangs and sometimes has HDMI issues. The stuttering seems to be related to picture content, detailed (e.g. lots of trees) or fast-moving (e.g. battle scenes) seem much more likely to stutter than less detailed close up scenes.
I am on the latest firmware (2.20.03-256) but on hardware version 7.11-cyb-00 (even though I only bought the box in November 2017). I think the latest hardware version is 7.2 and wondered if the old version might be the source of my problems.
Has anyone any similar experiences that might shed light on this.