Hawking 300 N kills my internet

[diandtom]

I am using a Hawking 300 N to extend internet out to a desktop in the garage, about 75 feet away. I am using a using a Linksys N wireless router at the house and a Netgear wireless in the garage. When I program the Hawking and get it working I may have DSL for 15 minutes or for a few hours. To get internet I have to turn off the wireless router and reboot the DAL modem. I have made several calls to Hawking and done what they say but to no avail. Any Ideas ?

[diandtom]

I am using Windows 7 at the house and Windows XP in the garage. Make any difference?

[diandtom]

I have found out that if I don't turn on the desktop in the garage, I do not loose interent. I programed the Hawking and let it run for two days and no problem. I then turned on the desktop and lost internet within a hour. All I did was turn it on . I did not use it. I have since reprogramed the Hawking and using a laptop with Windows 7 and still have no problem.