about my network

i have 2 virtual servers on esxi5. the server #1 is DC with this ip : 192.168.0.8 and the server #2 is web server with this ip: 192.168.0.9 on my LAN
i have also an ADSL modem.on this modem i have active DHCP ( in this range 192.168.0.30 to 192.168.0.254 ).
other client connect to LAN with wireless of ADSL modem.

i can visit the home page of my web servers from virtual machines.(all vm is member of domain but other client is not member of domain)
my clients want to have internet access with accesspoint but they dont want to be member of domain because they are guests.

what is problem? i can ping my webserver (ip of web server and name of webserver) in a client but cannot browse home page with internet explorer .

thank you for guide