Could not set static IP on OpenBox X3 and Wi-Fi dongle disconnect from AP trouble.

Hello. I'am using latest available firmware and I have two major troubles.

First - I cannot set a static IP on my OpenBox X3. DHCP is forced even if I disable it.

Second - USB dongle lost connection to AP regularly after several hours uptime

I found on another Satellite Forum, that this problem is also present on ***box F3 and there is still no permanent solution to this trouble.

I made one test. I connected the reciever to AP and on fly changed the channel number - receiver network connection has lost. I tried to set hardly channel on AP's instead of AUTO. Waiting for result.