itunes

when I try to buy , in itunes it always said internet timed out. I am using dlink adapter between my airport and my acer laptop.HELP (plus sometime no internet connection detected ,I have been to help desk, no help.

On my last post, i did not state my problem clearly.I will give more info now. My mac (10.4) has started getting dvds and cds stuck in the slot, i can only remove with a lot of work,mac store says it could be my hard drive. My solution was to use my airport as a router with my acer laptop while using a dlink adapter to access itunes in my mac,It did work for awhile, now it says , it cannot connect to internet, i also tried a belkin adapter, which could be the problem, when I do get into itunes, I cannot buy while in my laptop, it says it lost the internet connection. One quick question, if I start from the beginning with dlink, would you please walk me through, insert the dvd with dlink in my laptop or mini mack to start?? I am a senior at 65yrs old, so I am trying to keep up, give me credit for that. I just found out that the dlink adapter has a button to activacte it ( DUMB ME ), but I still get>> my internet timed out <<when i try to buy on itunes( what now?? )

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Thanks

Please explain more, sorry first time user.

ever since i upgraded to lion i have noticed that my Internet on my mac just phases out but my iphone still can connect i have to turn airport of like 5 times a day i think macs might have a big bug