All good here, it sounds as though the problem is your end. Odd about the two laptops - coulds they use the same settings? Have you tried a different browser and Windows i.e. Chrome, Firefox, Edge? You may be having difficulty with a password because of a keyboard problem, so make sure you are using the right language i.e UK and US English keyboards have different symbols. You may be picking up old cached pages, so go into settings for the browser and try a clear of temporary files. At least you have the option of using the iPad as last resort until it gets sorted.
Thanks Richard, have used two different browsers, and it's the email address that e-voice says is unknown. Mistyping it every time seems very unlikely. I have asked my backup administrator to try as well, if unsuccessful this proves it has to be e-voice issue