There are a couple of possibilities why the speed offered is way off the potential speed (which is 80Mb according to the address checker ) it could just be a mistake they entered the wrong address or it could be whoever was in the property last , and had FTTC , had their router connected on a rubbish extension socket/wiring or possibly the ‘line’ had a fault that reduced the speed …if actual data for the line is available that’s used for the estimate, even if that real data is low for the address because of a unresolved issue or fault …try the neighbours addresses either side , if they are around 80Mb then your speed will be similar, irrespective of the checker estimate, but you may need to check there is no obvious defects like a crappy extension socket …..providers don’t hold the speed artificially low if the estimate is low , the line goes as fast as it’s capable of , faulty lines can be much slower , but the speed comes back once the issue is resolved , the only issue initially is if you sign up at 7Mb , and get 7Mb reporting a slow line may be tricky (they say its performance is as expected ) obviously something like a dodgy extension you can fix yourself, if it’s outside you may need to get creative with the fault report , not using slow speed as the fault report
