I have had impressive speed for past a few months not just with my PlusNet router but my TP-Link Router for upstairs going over 30MBPS but just recently from October when I was having troubles with my WiFi and we got sorted my speed isn't as fast, as usual, have I done something wrong for this to happen?
I'm sorry to hear that you're experiencing these issues. I've tested your line today and discovered a fault, which I've raised a ticket about here. I hope this helps, but if you have any further queries at this stage then please don't hesitate to get back in touch.
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