The last time we heard about something like this is was a bad solder. Try reheating anything that looks iffy, making sure the solder flows into a nice “volcano” shape. I’ve marked some joins that look iffy to me in your picture here. Try fixing those by heating the join until the solder melts nicely, then adding a little bit more so that the flux from the new solder flows the old.

i just put together the kit and am having a 14 blink problem. i notice on network connections that while the yellow light is on the “acquiring network address” notation stays on until timeout occurs. what checklist of items should i check to see why a network address is not being acquired?