Senao 2511MP doesn't like Cisco AP with hidden SSID

RouterOS Wireless Networking
1

Using RouterOS 2.9.25 and 2.9.26.

Fresh config, set the Senao interface to station (default) and specify the SSID. No encryption or anything fancy.

Cisco AP352 is running factory defaults. Set SSID to non-broadcast.

The senao client will not associate with the AP with the hidden ssid.

Set the Cisco AP to broadcast SSID - works.
Using a Atheros based card - works.
Using RouterOS 2.8.28 - works.


Log output (from 2.9.25):

00:11:20 wireless,debug wlan1: STA starts scanning m.
00:11:21 wireless,debug wlan1: STA scan over, results: 
00:11:21 wireless,debug 00:40:96:56:2D:8B: on 2462 SSID 
    \00\00\00\00\00\00\00\00 caps 0x21 rates 0xf basic 0x1 MT: no 
00:11:21 wireless,debug wlan1: must select network m.
00:11:21 wireless,debug wlan1: no network that satisfies connect-list,  by 
    default choose with strongest signal 
00:11:21 wireless,debug wlan1: failed to select network 
00:11:21 wireless,debug wlan1: delaying scanning tom.
2

“Prism cards set in client mode will not connect to Access Points (AP) that work with enabled hide-ssid feature”

/me slaps head.

I thought it was the other way around… but how the 2.8.28 version we have in the field is working is beyond me.