Router and laptop

[#1]

My thinking is if the laptop is seven years old then I would perhaps recommend try changing the Wireless Mode from 1 to 2 or 3 to see if that helps

@Dan_the_Van that was going to be my next suggestion if the 5ghz disable had no effect

[#2]

Thank you for this but struggling to find this on Windows 10.

[#3]

That would be because it's nothing to do with Windows! It's a setting in the router ...

[#4]

Thank you. Will have a look tomorrow and report back

[#5]

It is found here

Here you can turn off 5GHz and/or experiment with the Wireless Mode setting

HTH

[#6]

Brilliant, thank you!

[#7]

Sincere thanks to all who replied. Changing the setting to 2 did the trick. Very grateful for your help!