I was format the NAND flash and I can't restore the RouterOS on my RB450G with Netinstall.

When I start the Netinstall it can boot the router and the router is wait for the installation server, Netinstall is found them and then I select it by MAC address and select package folder and package, and click Install but nothing happens.
I select the proper package and sometimes I select the previously saved license file but nothing.

Netinstall v4.0 and v4.1 indicate "Sending offer..." for 5-10 second but the router don't see the installation server or I don't know.

I was try on all port with 3 UTP cable, 2 PCs, 3 versions of Windows but nothing happens after the router booted up the kernel provided by netinstall.

I was try some of the Netinstall versions from 3.26 to 3.30 and from 4.00 to 4.01 too.

The same thing happens with my RB433AH routerboard.

Any idea?

Thx,
oreggin

Netinstall v3.30 indicate "Sending offer..." for only 1 second after I press the "install" button and busy for 10 seconds but the result is the same = nothing...