Originally Posted by pndiku
Crossing my fingers with you! I've also suspected the firmware being to blame. My receiver worked perfectly until the fateful day I saw the message for a new firmware. Since then the network hasn't worked.
The technician finished diagnosing my 3313ci and found the following:
- network interface not working (symptoms as I described earlier)
- usb port not working (this was news to me as I don't use the usb)
- he factory flashed the receiver via the serial port (older firmware version). It failed on step 6 of 7 (net/usb firmware module).
- he tried flashing newer versions and it also failed on step 6 of 7.
- diagnosis is the NIC/USB functionality hardware issue on the main HDMI mainboard. cost prohibitive to replace (roughly $500 - $600 parts and labor).
Now, strangely enough, I started tinkering with the receiver again once I got it home and observed the following behaviors:
- I blew compressed air through the front display board and the rear main circuit board (and their respective connections). I'm not sure if it was coincidence, but on at least two occassions I was able to get a DHCP address, the MAC address returned, and the firmware version was visible (basically, it started behaving normally). Unfortunately, if I power cycled the receiver, it would return to the same broken state).
- I also tried power-cylcing all switches, routers, and the cable modem which on one occasion seemed to coincide with the receiver again connecting to the network properly.
- While connected in the prior scenarios, the receiver was able to stream music, successfully check for firmware updates, etc. I had it streaming music for a couple hours before I manually power cycled and then lost network connection.
I don't know what to make of it all yet, but likely, there is a border-line failing component involved. :-( Looks like I'll have a crippled 3313ci for a while (can't justify going out and buying a new receiver).
I may try removing the mainboard, cleaning, and reseating connectors, etc. If I have any revelations while tinkering further, I'll post back.