Newest Deco M9 Plus firmware breaks WeMo switch connectivity
The latest update to firmware Deco M9 Plus(US)_V1_200918 went generally fine, EXCEPT it broke the connectivity of my WeMo wifi switches that had been previously working just fine. I have 2 and they both stopped working at the same time. They are V1 light switch models with firmware WeMo_WW_2.00.11408.PVT-OWRT-LS. Both exhibit the same symptom of not being able to connect to wifi and be seen by the app. The other WeMo devices I own continued to operate without issue. Rolling the Deco FW back to the prior version, Deco M9 Plus(US)_V1_1.4.2_200821, fixed the issue.
I saw the new firmware had changes to address wifi security, however changing the encryption type to the "more compatible" choice did not resolve the issue. Likewise, attempting to turn off fast roaming had no effect.
Any idea what caused this and will there be a resolution in future FW versions?