Thank you! I have upgraded it to 8.1.1.0.12, rebooted and defaulted.
From log model is 2925 (see below).
The top line still 'Ruckus 2825 Multimedia Wireless Router' - this is not a big deal,
There is still no wlan configuration, and I see "Port Forwarding" instead of it - this is a problem!
Support info shows next log:
Current date/time : 2013-10-31 17:13:14 GMT
### Boot Version ###
RB.0.3.2.1 - built 17:06:18, Jun 26 2006
### Active SW ###
SW Version: 8.1.1.0.12
### Firmware Upgrade ###
Check Result: new software detected, but download failed
Check Time : 12 mins 42 secs ago
### SW images on flash ###
#Main image Control+Header Info#
ipaddr: 195.190.0.43
file: 2925_8.1.1.0.12.Bl7
size: 5103616
MD5 : FFEAE12B66F070FF8FDCD01743DA1237
type: 0
local_file
Magic: RCKS
next_image: d0000
invalid: 0
hdr_len: 160
compression: l7
load_address: 0x80041000
entry_point: 0x80290000
timestamp: Fri Jan 29 17:46:22 2010
binl7_len: 5103456
hdr_version: 3
hdr_cksum: 0x5595
version: 8.1.1.0.12 ( 8.1.1.0.12 )
MD5: FFEAE12B66F070FF8FDCD01743DA1237
product: zf2925 (0)
architecture: 1
chipset: 0
board_type: 5
board_class: 2
customer: