I have a modem router Telsey CPVA642, which works flawlessly with openwrt 12.9 by falshing the image . However, any other versions like  and  do not work. In fact, the router seems to not complete the booting procedure i.e., no ping answer.
My problem is that I need the driver rtl8192c, which is supported only by BB and CC version.
Does anybody have an idea of what is going on?
Thank you very much