Are you sure the message says access forbidden ? Does it not rather say that it cannot resolve the host name ? Can you quote the real message ? Exactly ?
Which IP address does your Amiga have ? Where did it get it from ?
Where is your Amiga connected to ? To a router or directly to the internet ? How ?
Which IP address does the router have ?
Which address did you enter as DNS ?
Is a PC connected to the same internet connection ? Can you provide the output of the command
ipconfig /all
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