I have a 3 mesh Deco network, 2.5gbps internet, been working fine but after the update they receive OTA last night the download speed has plummeted.  

I was getting ~2.35Gbps in the app before, now I'm struggling to get 100mbps in the app and clients are measuring sub 10mbits, all download, upload speed is fine, over 2Gbps

ive tried reboot all decos, fiber box and all clients, still download speeds are terrible

Deco's are 

BE85 firmware 1.1.1 build 20241023 Rel. 34667

BE65 firmware 1.0.8 build 20240723 Rel. 26458 (Set as main, connected to fiber) 

BE65 firmware 1.0.8 build 20240723 Rel. 26458

please help!