ORBI wifi very slow

I am also recieving slow wifi speeds on the 2.4 or 5 Ghz band. Example, I have a comcast wifi enabled modem that sits right next to my orbi rbr50. Standing in the same room, my DL speeds on wifi 5 ghz on the comcast modem avg 246 Mb per second. I switch to the Orbi, and the speed avd on 5 ghz wifi is 14 Mb per second. I have tried a laptop(Windows), Apple Phone, and Android phone. I have verified on the router all devices were connected on the 5 Ghz band. This has been an issue through several firmware revisions as I have had the router sinve Dec 2016 and have updated regularly. I am currently on the 2.1.2.10 beta. I have tried disabling comcast wifi as well as ensured QOS is off and that MIMU, Beamforming, and fast roaming are all checked. My upload speeds are consistent between the comcast modem vs the orbi router. I have reset to factory, tried old firmware and beta firmware and current firmware. Even if I connect to the satellite the speeds are consistently slow as with the router (14 DL). Anything else I could try would be greatly appreciated, as I feel with the modem performing as expected this would be a setting or something with Orbi router.