Hi, just to also throw something in the ring. I had similar issues in the last week. I cranked up temps and that seemed to work, but I did get a noticeable improvement after I did a factory reset, I guess something to do with this:
Although this isn’t strictly under extrusion, I found that a slight under extrusion was making my adhesion pretty bad. I guess around the time I started getting troubles, I threw in a firmware update.
Anyway, with slightly increased temps and a factory reset, I get amazing adhesion now. I did the whole cleaning with dish soap and then with alcohol, thing, I noticed no difference.