Delay in reconnecting after power outage

On three separate occasions over the past year since installation, my Swish Fibre (now Cuckoo Fibre) service has failed to reconnect in a timely manner after a power outage.

The Power, PON and LAN10GE lights on the ONT (a rebadged Adtran SDX 622v) are steady green, but my TP-Link Deco X60 reports no internet connection. None of the usual "tricks" change this.

After 20 - 40 minutes of inaction, internet connectivity is restored.

Has anyone else experienced similar?

I have Swish with exactly the same ONT, and the rather more modest TP-Link Archer C6. This is a replacement ONT - I had a fault with the first one where the leds were on OK but the router wouldn't connect, but this was solid and fixed by swapping out the ONT. Otherwise I don't ever recall seeing the ONT leds on green but no router connection.

We had planned maintenance here early this morning. The warning email from Swish said it would be down for about 1 hour between midnight and 5am. In fact it was off from about 01:44 to 06:38. Whether that was because the router didn't reconnect immediately it came back on I don't know. I was in the land of nod at the time, but I have an RPi on my network that keeps an eye on these things and logs outages.

Interesting.

Whenever I've power cycled my ONT, it's come back relatively quickly, so I don't think this problem is caused by the ONT...

But Swish have previously assured me that their cabinets have battery backups, and this checks out – during a town-wide power outage last year my Swish connection remained up until my home UPS ran out of power (the mobile masts died pretty quickly).

Perhaps you've got a faulty ONT, or their cabinet had a fault meaning that the battery backup didn't kick in? I'm afraid I think this is one for the Swish / Cuckoo support team.

Hi there,

I'm sorry to hear you've been having trouble with getting the service back up and running following a loss of power.

Can you reach out to me directly with your account details so I can open a case to investigate further, unless you've already logged this with our support desk?

Best,

Chris.

When the power dies it all dies, no evidence of "battery back-up".

Have you got battery back-up or UPS like @behuk? If not then when the power goes off it will all look dead to you, even tbough there may still be light in the fibre.

I would strongly recommend taking up @Swish_Fibre's offer to help. That looks to be your best option to getting this sorted.

I have done.

My error, I mistakenly thought @behuk was referring to the ONT rather than a footway box.

In reply to a post by FitzFoto:

My error, I mistakenly thought @behuk was referring to the ONT rather than a footway box.

Ah, apologies, for the avoidance of doubt:
- My ONT is battery backed using a UPS which I bought. The current system can run my ONT, router, WiFi points, and a mini PC that I use for running virtual machines for around 4 hours.
- There's no active equipment in Swish's footway boxes, so they don't contain any power.
- Swish's cabinets have a battery backup, and my understanding is that Swish expect to be able to have an engineer arrive on-site before the battery runs out (to connect a portable generator). I haven't been able to independently verify this!