Cranky said:
I've had a Netgear DG834GT for nearly four years, in constant use for 16 hours per day, and it's very reliable. However, I've read mixed reviews on them, too. It's important to keep the firmware updated but that's an easy job via Netgear's website.
When I moved house I needed to improve the reliability of the wireless signal for a PC upstairs so bought two of
these antennae - one for the router, one for the PC with an extended antenna base from the same supplier - and now the wireless connection is lightning fast.
I have one desktop PC wired in, one wireless, and two laptops in regular use without problems.
I also use a Netgear DG834GT in a large house over 3 floors. I had it for years and never had a problem with it. I did have a problem with a Netgear access card and I had to get help from Netgear Technical support and that experience was terrible

easily the worst technical support people I have ever come across..... likely I'm a technical person so I managed to overcome the problem by doing things that were beyond the help the y can give you.
Somebody mention keeping the firmware up to date.... that is only half of the problem..... my advise is whenever there is a new firmware wait for a while and monitor on the Netgear Forum the experience of other users.... you will soon realise that some of the firmware have been a real pain in the you know where

- at the moment I'm using something.16 and it's quite stable however, the next one up, the latest has too many unsolved issues.
Funny that you should mention antennas! The DG834GT has a very good range, better than most Super G. I also have two other routers, including an expensive Zyxel with bandwidth management but only half the range. Anyway, I saw a video on youtube a few days ago about making yourself an antenna... I saved the link in case one day somebody might need something like that.... at the weekend while chatting to my new next door neighbour she commented she needed to buy a bigger and more powerful antenna.... that evening when I had some spare time I watched the video again and got everything that I needed to manufacture the antenna

... then when it was ready I knocked on her door and I asked if I could try this home made antenna

.... to my surprise the signal when from 67% to 94% so, it worked

.
You can watch the video
View: http://www.youtube.com/watch?v=sUTT8wdN_VA
The website for freeantenna was down but I found the pattern here
http://img81.imageshack.us/img81/2696/windsurferlw5.jpg
Three tips:
1.- the video shows the bigger version (size A4 ) I made mine from the pattern which is smaller.
2.- Make the flaps about 1 cm longer than in the pattern - much easier to put it all together later on. Your would need to print the patter twice to achieve this.
3.- I used photo paper and it worked great.
Not exactly cycling talk but I hope somebody can benefit from this antenna...