I know that many problems are fixed by unplugging the router, and, then plugging it back in. I remember having some problems when my son lived with us, and there were router problems.
He got quite disgusted with the D-link system. I still have his wireless PC card. May be it is a driver problem. Check with the D-link website.
I will check with him, if he remember what he did.
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:126.96.36.199) Gecko/20060728 Junglebumblebee Firefox/188.8.131.52
A minority may be right, and a majority is always wrong
~ Henrik Ibsen
WinXP, SP3, 512 MB, SM2.17.1, FF21, TB17.O.5, IE8.0, Google Chrome 26, Ghostwall , Kingsoft5.6, JRE1.7_21.