Netinstall does not "see" device

Win7. Wireshark clearly sees BOOTP requests from device, Netinstall 6.44.5 launched, but does not reply to BOOTP requests.
Windows firewall is off. netstat -an -p udp shows that ports 67 and 69 are being listened by Netinstall.
All set up according to Netinstall wiki.
What am i doing wong?

Disable your firewall, antivirus and all other networks cards.. Let enabled only your ethernet card connected with the MikroTik…
Then all the rest are covered by the Wiki… Port ether1 for netinstall, with configured IP address etc…

You can also try an earlier version of Netinstall…

There is no antivirus and firewall turned off. There is a second ethernet, though. I’ll try disabling it, thanks.

BTW, is there a Linux tool for this? Did someone reverse engineer Netinstall? From what i see it is a BOOTP and TFTP service, there is plenty such tools for Linux…
Had to install Windows VM just for Netinstall. I prefer command-line tools and ssh/telnet.

Using an older version (try several) has always solved this problem for me.