Wireless router connection lost with streaming media?

Hi,

I have a strange problem I can't solve. Often times I lose my wireless internet connection when connecting to streaming media. Particularly, Motherlode on comedycentral.com and amazon.com song previews. After trying to buffer for a while, my signal quality will go from excellent, to lost.
The strage thing is that it isn't just my computer (CF74 toughbook running XP pro) that loses it's connection--everything on my wireless network loses its connection. Mostly, this is just my Roku Soundbridge. My router is a cheap Netgear WGR614 v7. Anyone have any thoughts?

Please help.

I didn't find the right solution from the Internet.

References:-
https://cnet.co/2IZpyIc
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Thanks!