HD receiver offline

I have 2 TVs, 1 HD DVR and 1 HD receiver which are networked via deca/swim(?) system. I was playing my pictures from my home network on my HD receiver yesterday and the HD receiver froze. I pressed the red button to reset the HD receiver but lost my network connection in the process. I can't seem to be able to bring the HD receiver back on the network.  My HD DVR is online and has no issue. Any idea how to get my HD receiver on the network again. I tried network setup but it is still not connecting to the network. I've only had direct tv for a few weeks and could use some help.

Thx