Typically the balance 20 router does a pretty good job of switching over when the primary internet goes down. i have tested it by removing the primary wan cable and it works just fine. Last night it of course did not work again and this is twice in a row. The configuration looks fine to me so I am not sure what could have changed. I notice i cannot upload a diag report so I’m not really sure where to start. The primary is a cable connection and the secondary is a dsl. The primary went down, the dsl stayed up but did not switch over. Could you please provide me any info on where to start the diagnostics?