Lost internet connection

[Grytpype]

I've been a Sky customer now for approximately two months after switching from TalkTalk Fibre 65. I have SkyStream with Fibre 500. The ONT was fitted by OpenReach a couple of years ago while I was with TalkTalk. I have a TP-Link AX53 router which I've used with TalkTalk for a few years, and now with Sky without problem, until now. 

On the evening of 10/05/2024 I lost internet connection and noticed that the PON light on the ONT was rhythmically blinking green.  I rebooted the router and ONT etc with no success. I replaced the AX53 with the Sky hub and still no internet. I looked on the Sky website and after checking my broadband connection the site confirmed there was a problem in my area (NN10). I left everything switched on overnight and the internet connection was restored the next morning. 

Everything worked OK until the evening of 12/05 when the same thing happened again, I’d lost the internet and the PON light on the ONT was blinking. I checked the Sky website which stated there wasn't a problem in my area. I swapped routers as before and still no connection with either the AX53, or Sky router. I left it overnight again and the internet was reconnected by Monday morning 13/05. 

I'm assuming I don't have a fault with my equipment as I get the same problem with two independent routers, and as the internet is restored overnight I'm guessing an automated diagnostic routine kicks in somewhere and resets whatever is required.

I don't have any new devices, or appliances that start up/shut down in the evening that could be causing interference and affecting the equipment. 

Is it possible that I have a problem with the ONT, or cable to my house and need to arrange an engineer visit? 

I'm also wondering whether the recent solar activity is influencing the service. I'm aware fibre systems should be less affected by CME's but my outages coincided nicely with the timing of reports of the aurora being seen in the surrounding area. 

Any suggestions, or other ideas? 

[Chrisee · Accepted solution]

@Grytpype the report of area issues does not pick up all exchange issues and a faulty unit in the exchange could be the explanation for both issues. The fibre distribution is entirely passive between your ONT and the OLT unit at the exchange. While the solar storms could be responsible for the number of FTTC issues reported over the weekend I doubt it could cause issues with fibre lines but its possible.

If it repeats give Sky a call as Openreach may want to swap out the ONT if you do thst have the Sky hub in place as their diagnostics require that. My money would be on the OLT exchange kit having a couple of bad days.

[Grytpype]

Thanks for the reply Chrissie.  I haven't had any further problems since I posted, but if I  do, I'll contact Sky as you suggest.