Orbi clashing with new Fiber internet service

Hello all!

I have the Orbi RBR850.  We switched from Spectrum Broadband to Fiber Optics.  For whatever reason, the Orbi isn't playing well with the new NOKIA modem.  The data line flashes yellow when it's plugged into the Orbi.  It has been disconnecting us from the internet, which is bad because I work from home and rely 100% on internet phone.  When any other system (including the company's own mesh system) is plugged in, the data line is a steady green. 

Is there a setting in the Orbi that would help the light to flash steady?  I do not have Armor turned on.

Thank you in advance!