the routing table suggests that you have changed the internal network from 192.168.80.0/24 which is what it needs to be to 192.168.170.0/24 which will not work.
Assuming that your NAS and home run are on your internal network and have 192.168.80.x IP addresses, that is why you cannot ping them... the routing table has no subnet for that network and so will send your pings to the Internet. BTW, your eth1 is clearly configured on the Internet side, and eth0 on the internal side, which will be causing you problems as well.