Why is my website not showing-up on the www ?

KingL2

Ah, yes, sorry.   Yesterday's was wrong, they are both 192.161.51.110

debitcardmayhem

Change you dns settings on your router or your pc, to 8.8.8.8 or 1.1.1.1 (cloudflare) then enter your website name in your browser , the server at 192.161.xxx should route your request to their internal webhost for your domain
pinging 192.161… will come back with NSUrl error so you need to tell it your domain.

Addendum the address that comes before hand 198.168…. will never leave uyour local system

KingL2

HOLD THE PHONE

The DNS details I gave previously were from a screenprint of the Registrar's Portal, which it seems is out of date.  I have been on to the Registrar and they tell me that the DNS is managed by the webhost.   So, returning to the webhost's portal, the DNS table has a warning:

Warning - errors were found in this domain's DNS records : The DNS record MYDOMAIN.co.uk. resolves to the IP address 192.161.51.110 instead of the virtual server's IP 216.XXX.XXX.202

I have never been notified of the old or the new IPs, but I have now deleted all the old records from the DNS table (except localhost) and set up new ones with the new IP. Is this the sort of thing I am supposed to do (rather than the host doing it)?  I left cachetime=domain default, is that right? The warning message has disappeared. I'm waiting for them to propagate. 

EDIT:  Yep, it works, yay!  Thankyou everyone for your time and help.

deskhelp

Yes it should have been done by your webhost company.. In that case my provider webhostuk is quit better when it comes to such issues, their livechat customer support just get things done quick.