Does Forti AP U431F Support 4x4 MU-MIMO

[LiaoChiaNan]

HI~ According to https://www.fortinet.com/content/dam/fortinet/assets/data-sheets/fortiap-u-series.pdf  FortiAP U431F FAP-U431F Indoor Wireless Universal AP - Tri radio (2x 802.11 a/b/g/n/ac/ax, 4x4 MIMO and 1x 802.11 a/b/g/n/ac Wave 2, 2x2 MU-MIMO)

Does that means FAP-U431F only support 2x2 MU-MIMO at Radio3 ? Radio 1 and Radio 2 only support SU-MIMO ? Thank you~

[Toshi_Esumi]

https://en.wikipedia.org/wiki/IEEE_802.11ax

As in the wiki description, an additional signaling is used for uplink MU-MIMO, the clients need to support it. Those devices with "ax" support should be the ones. And off course multiple ax clients are needed to see the difference.

[LiaoChiaNan]

Hi Toshi Esumi,

thanks for the information.

According to wiki,  802.11ax support MU-MIMO and OFDMA natively.

But  my  client device only got 802.11ac adapter.

Some of those adapter support MU-MIMO (EW-7822ULC), and some doesn't (Intel AC8260 ).

That's why i want to figure out FAP-U431F's radio1 and radio2 supports 802.11ac 4x4 MU-MIMO or not.

Maybe i can make some performace test to figure it out. 

Or, raise  the budget , replace them to Intel AX200 wifi adapter. 

[LiaoChiaNan]

Hi James,  

thanks for the advice.

Seems like the temporary workaround is POE+ injector.