We are a small business with 20 users (winxp) on a LAN with one server (win2k) which is DNS server. Internet access is via standard ADSL using router.
Our problem is that suddenly nobody on the LAN can access https sites.
Nothing has been changed on the server or router/firewall so I am at a loss as to what could be the ause of the problem. I have checked several sites such as https://www.microsoft.com
but in all cases we get 'Page cannot be displayed' error.
Any suggestions would be very much appreciated.
PS I am not expert on TCP DNS etc (else why would I be asking you guys), so please be gentle with me!