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Archer BE550 - only 2x2 MIMO in 802.11AC?

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Archer BE550 - only 2x2 MIMO in 802.11AC?

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A1onso

2024-01-22 13:55:42 - last edited 2024-01-23 03:58:38

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Archer BE550 - only 2x2 MIMO in 802.11AC?

2024-01-22 13:55:42 - last edited 2024-01-23 03:58:38

Model: Archer BE550

Hardware Version: V2

Firmware Version: latest on Jan 20/2024

hi,

I just bought the Archer BE550 router (802.11BE). Hw ver 1.6, the firmaware was auto-updated to Archer BE550(US)_V1.6_1.0.5 Build 20231214

This will replace my old Archer C80 (3x3 MIMO, 802.11AC).

I have a NAS device, that is connected to the network via 1Gbps port of RE650 (4x4 MIMO, 802.11AC).

My PC is connected to the router via LAN port of the router.

So, on C80 I can see rates up to 1300/970 (in the C80 web UI "network map"). iperf (LAN->NAS) shows ~750Mbits.

That's about max for 3x3 MIMO (3*433) that C80 supports.

After replacing C80 with 550BE, I can see 866/866 in the same configuration ("network map" of BE550 UI). iperf shows ~650Mbits.

It seems BE550 only supports 2x2 MIMO for the 5GHz 802.11AC.

I've tried disabling 2.4 and 6 bands - no luck.

MIMO/OFDMA is enabled; disabling does not change anything.

BE550 was restarted after each of those changes.

So, can I get to more than 866 with BE550 and RE650? E.g. firmware update?

Thank you.

1 Accepted Solution

woozle

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2024-01-22 20:27:48 - last edited 2024-01-23 03:58:38

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Re:Archer BE550 - only 2x2 MIMO in 802.11AC?-Solution

2024-01-22 20:27:48 - last edited 2024-01-23 03:58:38

@A1onso

Hi,

The Archer BE550 is 2x2 MIMO by hardware design. (2x2 MIMO 2.4 GHz, 2x2 MIMO 5 GHz, 2x2 MIMO 6 GHz)

This cannot be changed via software.

It also means that 802.11ac client devices that support 80 MHz channel width can only connect with up to 866 Mbps, even if they are capable of 3x3 MIMO or 4x4 MIMO.

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Sunshine

2024-01-23 03:56:57

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Re:Archer BE550 - only 2x2 MIMO in 802.11AC?

2024-01-23 03:56:57

@A1onso

Hi, you are correct, Archer BE550 is 2×2 MIMO no matter in 802.11BE or 802.11AC, so the negotiation speed with RE650 in 11AC would be 866Mbps at most, I am afarid it cannot be improved via firmware update since it is limited by wireless specification.

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A1onso

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2024-01-24 12:15:39

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Re:Archer BE550 - only 2x2 MIMO in 802.11AC?

2024-01-24 12:15:39

I see, thank you both for the info.

A1onso

2024-01-22 13:55:42 - last edited 2024-01-23 03:58:38

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