I 've had the same router since joining Plusnet 5 years ago. Is it just too old now?
@Stewart1887 It probably is getting old, but IMO should still work OK. I'm not going to give chapter and verse, but as you have noted, there is plenty of advice re splitting the 2.4 and 5.0Ghz channels - look for posts, by 'Baldrick1' especially, on the subject and follow them - it is a simple procedure.
I'm here! These are the instructions that John is probably refering to: https://community.plus.net/t5/My-Router/2-4ghz-and-or-5ghz-best-practice/m-p/1351966#M840
However if the power light is blinking then it's likely that there's also an intermittent fault on your Hub. If you have recently renewed your contract, or about to, then if you can live with a Plusnet Hub One then ask for a new one. Whatever you do don't pay the Plusnet full price for one, they're probably about worth the P & P charge and that's it.
If you want a better budget replacement then spend about £20 on an auction site for a BT Smarthub 6. Setting instructions are here: https://community.plus.net/t5/My-Router/Using-the-BT-Smarthub-6-on-a-Plusnet-Account/m-p/1587673#M85...
You tube tends to buffer, but I'll just have to take more breaks in my exercise videos.!
Thanks so much for the quick response from all and the easy advice.
It might be worth you posting on the end of this thread to see if a firmware update would help the 5GHz band. I would still keep them separated though. https://community.plus.net/t5/My-Router/Hub-One-5GHz-WiFi-issue/m-p/1696363#M15510