The router is a Netgear Wireless N RangeMax Dual band router, capable of sending signal at 2.4GHz and 5 GHz simultaneously, and offers many different types of encryption including WEP, WPA-PSK, WPA2-PSK (AES) and a combination of the latter two. Since my Vaio laptop is capable of receiving signals at 5GHz, I chose that option to receive interference free signals, and the option of multiple channels to choose from.
The signal flow is such: Cable --> SB5120 --ethernet cable---> Netgear --ethernet cable---> laptop;
Or after configuration: Cable --> SB5120 --ethernet cable---> Netgear -- wireless -- laptop.
The problem is occurring in both these scenarios, wired and wireless connection between the router and my laptop. Even after successful connection, where the Netgear Router has cloned the laptop's MAC address, it is receiving the proper IP from cable modem, the cable modem disconnects every 15-30 minutes on its own, and then reconnects after about 5-10 seconds. All the lights go off except the PC activity light, and then start coming back one at a time from top to bottom. This is the exact same situation as normally happens if the power to the modem is cut and then restored.
As a result, I am getting very slow speed of connection to almost any web page. As long as the modem remains operational, the webpage load fine, but once it starts to disconnect at regular intervals, the pages slow down to a crawl and then the browsers don't load any page any more, until the modem comes back up.
When I completely disconnected the Netgear router from the equation, and connected just the modem to the computer as before, I had no problem getting on the internet and staying connected. Can someone please offer some constructive suggestions about my problem? Has any one else encountered anything like this before?
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