Hourly Internet outage.

[dcol]

Here is a real mystery. Need advice.
For the past few days the internet has been going down for one minute at exactly 57-58 minutes after the hour. Not every hour, but about 15 times a day.
Internet is fine at full speed when working. All logs show nothing. I use an outside monitor to ping my IP and the gateway IP every minute. The IP goes down but the gateway is still ok.
The only indication of an issue in OPNsense is the Reporting Quality report which shows high loss during these outages. Not sure if the loss is reporting an issue or just the connection drop itself. The ISP says there are no issues on their end, but did slip once to admit some packet loss to me.
I have replaced the complete firewall, with all network hardware. There are no cron jobs running at this time and I do have DynamicDNS updating the DNS provider, but that doesn't have indications it is running at that time. This is a basic WAN/LAN setup with no plugins or Suricata running. No VLAN's
The fact that it happens at a consistent time does not seem like a hardware issue.

Any suggestions on what I can look at to try and pin this down?

[dcol]

No responses?
Anyway, I figured it out.
Thanks anyway.

[leifnel]

That's not fair...
At least hint what the problem was ;-)