MikroTik

Hello,
Today SXT Lite5 tried to connect to two different OmniTIK U-5HnD on nv2 protocol.
And both registration not.

If OmniTik include
/ interface wireless set wireless-protocol = any
/ interface wireless set wireless-protocol = nstreme
then the registration appears.

if
/ interface wireless set wireless-protocol = nv2-nstreme
Registration is not.

On the SXT Lite5 is
/ interface wireless set wireless-protocol = any
on all devices
/ interface wireless set set nv2-security = disabled
/ interface wireless set default-authentication = yes
/ interface wireless set default-forwarding = yes

And yet,
SXT Lite5 connected via nv2 to RB800 with atheros AR92xx
with same settings (except for the SSID and freq)

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all device have RouterOS 6.1
Firmware upgrade to 3.07 (SXT)
3.02 (OmniTik)

tried on RouterOS 5.25 - fail
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Why sxt Lite5 not connect omniTik via nv2?