Same issues. Just stopped working a couple days ago. Very disappointing. Folks with Quest3 seem to not be having the issue, but that is a heavy price to pay when I just renewed my subscription to SLR, and the Quest2 is supported.
Haptics Connect (Phone App) --> Kiiroo Keon/Powerblow --> Quest2 --> DeoVR (Infact DeoVR says Haptics connect is no longer supported)
Quest2 --> DeoVR --> Kiiroo (Bluetooth) still not supported. (THIS SHOULD BE THE SUPPORTED METHOD)
Opened ticket, hopefully I hear something back.