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Showing content with the highest reputation on 30/03/21 in all areas
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if you have the powerline working and your ok with them https://www.gjd.co.uk/products/ip-detectors/ipanything-gjd5161 point
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Mobile operators and isp change things all the time1 point
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O2 won't work neither does ee for many users Recent problem1 point
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https://en.wikipedia.org/wiki/Carrier-grade_NAT#Disadvantages May give you a basic understanding of what I mean. It's normally more of an issue for hosting a service than connecting. I'd have a guess the device with the issue will be Telefonica carrier.1 point
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Mobile service provider. They often use CGNAT.1 point
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Service provider blocking ports? Are you all with the same provider? You have proved the devices and the account settings if it works on LAN so the only thing I would say is left would be a service provider issue.1 point
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If he can get into your DVR then it wont be an IPhone setting its more likely an app setting1 point
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Then its not the same problem I had, sorry I dont have the answer1 point
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As I said its an account thing, humour me, get him to connect to his own DVR using someone else's account login. Preferably one that has proven to work on 4g1 point
