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Internet outage phenomenons

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I woke to an oddity. The lights hadn’t come on at 06:00 based on the light outside.

I checked the pihole and it indicated a crazy increase in DNS requests since about midnight. I initially worried it was an exfiltrating malware. However then on the pihole I noticed the massive increase was in requests to (predominantly from the Google Home devices; you can see the change in the traffic once I unplugged them).

On checking the modem I realised it was a reaction to an internet outage – which as the pihole graph indicates, lasted for about 11 hours.