Issues connecting to internet from iMac
This is doing my head in!
Existing iMac -
Mid 2011 running High Sierra. Needed to update to be able to stay current on OS, so purchased -
New iMac
Retina 4K, 21.5-inch, Late 2015, running Catalina. Should be good for a few years yet, right?
Problem
I used migration assistance to set up the new iMac from the old over a network cable. All went fine, and concluded. A few error messages about obscure stuff.
Home Wifi running off a central router. Many, many devices running off the back of its Wifi, including the Macbook on which I'm writing this, the old iMac which is accessing internet just fine, the family TV currently streaming from Netflix, all the family mobile phones, tablets etc. You get the idea - the router is working fine.
But, the new iMac will not access the internet via a browser, either Chrome or Safari. It reports perfect connections using the main router on 2.4g and 5g. I've also connected via my iphone personal hotspot - same result.
But, browsers still report no internet.
So, I hit Google with the problem, and started down the path of working out what's wrong. One of the first steps, of course is to confirm your OS is fully up to date. So, I went down the route of updating to Catalina 10.15.6, which worked flawlessly !!! So, the Wifi connection is in place, and works, but it's just the browsers that can't access anything.
I've tried the various suggestions such as setting up a new Wifi location, which seems to be the silver bullet for some, however the IP address already allocated was fine, and perfectly logical for the router's DHCP table, so this made no difference and didn't work.
I'm really at the end of my tether here. Any ideas as to what I can try next ?
Thanks