Any tech coming from your ISP should be able to measure the signal on the line provided by your phone service provider. But you can contact them yourself also and ask for a measurement. If it's defective indeed, both the measurement and the replacement will be free.
I am hoping someone can help.. we have limited speeds on our broadband internet, We are changing ISPs due to wifi cutting out and buffering. We have already purchased 2 new routers and a new modem from the ISP to no avail. I I think it may be an issue with the copper lines. Can someone please tell me how/ who to contact to have this fixed if that's possible? I can find very little online...
Thank you

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