5/7/15 UPDATE: The solution described in this blog post (from September 2013) may no longer be necessary. I recently (April 2015) performed a firmware update and “reset the router to factory defaults” and life is good, no performance issues.
The key “Revert to factory default settings.” step may have been the issue all along, something I don’t think I tired back in 2013.
Thanks to Phil for sharing this solution in the comment section along with links.
From Netgear’s Website:
Note: Please remember to do factory default after firmware upgrade. Enter “Backup Settings” in the web GUI and click “Erase” button of “Revert to factory default settings”.
Below is the original blog posted, which is an alternative solution if still have issues.
For the past few weeks I’ve been troubleshooting a problem with my internet connection. I finally found the solution and want to share the solution, just in case others are having the same issue.
My WAN or internet connection was dropping at least once a day, sometimes 3-4 times per day. Power cycling (unplug/plug back in) the cable modem OR the router would temporarily restore the connection, but this never resolved the problem.
Firmware version 126.96.36.199 for the Netgear WNDR4500 was the source of my problem. I rolled back to the previous version V188.8.131.52_1.0.40 and BINGO, my internet connection was stable once again!
You can download V184.108.40.206_1.0.40 from the Netgear Support Website for the WNDR4500, click on “Get More Downloads” for the list of previous firmware.
Once you download the firmware, access the router’s admin panel through a web browser. By default the address is: http://192.168.1.1/. Once logged in, go to the advanced tab and select “Router Update” under the administration section.
Here is a screenshot of the router update:
From here it’s straight forward, click browse, find your V220.127.116.11_1.0.40 file and upload to the router. After rebooting the system, you should be FIXED!
Hopefully Netgear is able to fix whatever issue they are having with V18.104.22.168, which was released in May 2013. Running the latest firmware is normally a good idea, USUALLY fixes bugs and strengthens security of the hardware.
Hope this helps, what frustration! My broadband provider offered to come out and check the lines, with the usual warning…if it’s determined the problem is with your equipment, we will need to charge for the service call. Love that… I’m glad I said “no thanks”.