But there is no TalkTalk 80Mbps FTTC package as a name. The TalkTalk Fibre 65 package is actually the 80Mbps package (but it is numbered as 65 to indicate the Superfast package), so you have not switched package at all. What you are saying is that you re-contracted with TalkTalk, not switched to them!
This is quite strange. I also have TalkTalk Fibre FTTC but I get stable 80/20 Mbps last 1 year with 18dB line attenuation.
What is the firmware version of your router?
Mine is TalkTalk Wi-Fi Hub version SG4K10002816t
Not sure if those are normal or expected if you are syncing at lower speeds. But it could signal faulty router, if I'm not mistaken.
Thanks for trying to help.
I haven't switched provider i have moved from a TalkTalk 80Mbps FTTC package to fibre 65.
Firmware Version: SG4K10002816t
I don't think it can be the router as it was working perfectly before the disconnection and is giving the same speed test result as the speed showing in the router stats, its as if i have been capped at 24Mbps.
So what you are basically saying is that you remained as customer after your initial contract ended, but somehow it appears that TalkTalk by mistake have put you on lower speed caps? If this is the case, then it wouldn't be a technical fault. Unless it was sheer coincidence that a technical fault occurred following the re-contract. Normally things should remain as they are unless TalkTalk have fiddled with your connection by mistake.
I am assuming your service was good prior. That means surely when you were getting better speeds before, your line attenuation cannot have been 40dB. No one with a 40dB attenuation would have 60-80 Mbps speed estimates as the line to cabinet would be too far away.