It’s very blustery here in the Dordogne with high winds forecast. Should I unplug my 4g box or will it be ok if there is a sudden power cut?
If it’s that SFR one, doesn’t matter - power cut won’t hurt it, it may just take a minute to reconnect when power comes back. In general, actually, it doesn’t matter much.
(source: 1 SFR 4g box, 1 Bouygues Telecom DSL box, 3 computers, 2 media center boxes, 3 laptops - yes I work in IT, why? 
)
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It’s a Bouygues box. Thanks, I won’t worry.
You only need to worry about unplugging it if there is lightning around. If you get a UPS, you don’t have to worry about temporary power outages.
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I don’t turn stuff off for electrical storms, frankly surfing the 'net is the best thing to do when it’s p***ing it down outside.
Not much survives a direct strike, lightening takes the path of least resistance - but what 10-100,000,000 volts considers the path of least resistance can be ………counterintuitive 
You are mostly interested in protecting yourself against surges on the mains caused by ground strikes close to wiring (for a direct strike on the feed to your house see above) - if you live in an area which is susceptible to a lot of electrical storms you can do that with surge arrestors on the incoming mains and telephone cables.
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Even if your ISP provided 4G box / router blows up, there are lots of reasonably priced alternatives out there - often better than the original!
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That includes the surfer.
There’s certainly the potential (geddit?) for that to happen 
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I was going to continue the pun chain but I just realised I have nothing… let me try this again after some coffee.
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