I really don't get this machine. All I did was keep reconnecting the lan interface until finally the pings came back under .0xxxx. Is it that the network card they used is a cheap piece of crap? Can I change this part out to a better one? If so, any recommendations? Also, can anyone verify that the cat3 cable I installed by mistake will not work? The rig connects to my network on it and I can connect to it. After moving my rig back on a known working cat5e line it still had high latency issues when ping openwrt, until eventually working after reconnect to lan several times.
Edit: According to google cat3 is good for 10Mbps. I only have 6Mbps on this crappy att dsl. So theoretically the cat3 I have should work for this application just fine? Maybe if I would've just kept hitting reconnect it would've worked on that line as well?
have you tried a laptop or pi on the end of the cat 3 and pinged ur router to compare. that should give a hint to what is going on.
I just moved rentals and brought some tplink powerline adapters

I am having similar problems with my pi's , waiting for network cable to be delivered now..
DO NOT use powerline adapters for mining. They work fine for weeks then go screwy at
random.<< probably when the misses uses the washing machine
I didn't ping from it, but yes I connected a laptop to it and it accessed the the internet fine. Tomorrow I'm going to try and reconnect the rig to it and keep reconnecting the lan interface and see if it works.