Hi! I have a rather basic set-up:
3 workstations connected to a Balance 20 on a LAN connected through WAN 1 to Xfinity service; and through WAN 2 to Verizon 4GLte via a wireless modem. The Xfinity/WAN 1 is the specified as the priority connection.
After running Setup Wizard for both WAN ports, WAN one gives me an IP Address of 10.0.0.7 and a Status: Green and Connected; while WAN 2 shows IP Address: (non) and Status: Cold Standby. But, when I pull the cable to the Xfinity, the Verizon service does not kick in; and I get an error message: DNS Tests Failed. Before, there was a warning that DNS Healthchecks failed; to which I ran the traps on the forum looking for possible fixes, including checking the second box: “Include public DNS Servers”; and increasing the Health Check Retries to 5. This did not work.
Today, by Xfinity dropped out for most of the day; and I had hoped/planned that the Verizon service would just step right in; but it did not. In fact, I had to rip out the connections from the Balance 20 and manually put them on the Verizon modem. The service was there; and my work went uninterrupted. Now, I’m trying to set up this Fail-Back so it actually works; but to no avail. No matter I how I approach:
What is wrong here in this basic configuration? Why can’t the Peplink see the WAN 2 DNS?