Limping along with a broken router

Two days ago our FiOS connection started crawling, with most web pages refusing to load at all. It’s a 15/5 Mbps connection that Google’s speed test reported as .2 Mbps. I called Verizon and a very patient and thorough tech ran diagnostics over the local fiber network, the ONT (Optical Network Terminal) and the router. He eventually concluded our router was the problem and arranged for a replacement to be shipped out. That should arrive later today, but in the mean time, there was no Internet in the house. I set up a local wireless hotspot (that does not go through FiOS) that lets most of the computers get back to work. However, I have a NAS that sits on my local LAN. If I connect to the hotspot, any of my Linux boxes that mount that NAS pause for about a minute while queries to the NAS time out. If I connect to the local ethernet connection, the NAS is fine, but there’s no functional Internet. What to do? The solution was rather simple. These instructions are for Ubuntu 16, but I haven’t tried them on earlier releases:

  1. Launch Network Connections
  2. Click on the Ethernet connection
  3. Select Edit
  4. Select the IPv4 Settings tab
  5. Click Routes
  6. Check “Use this connection only for resources on its network”