Here is a link to the manual for your DWL-G710.
D-Link manual on page 13 it lists the url entry should be
"http://192.168.0.30" This is a HTTP link not a HTTPS.
Also the address you typed in might be a typo. The IP address should be 192.168.0.30 not 192.168.0.30.
GOOD LUCK!!!!
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