wifi BIGger antenna..

[animeal]

hi
I have wireless in mobile park (where i live).Im using a wireless anntenna that looks like a dish, all curves, exept solid it just has bars and 1.5ft transmitter.Has short thick cable.that connects to a longer cable thats regular size.That connects to a little box (half the size of cigarrete box) that changes the signal and another thinner cable connects to computer (usb).Here is the thing.The little box(called EnGenius) has software. i installed that. that works fine. It shows signal strengh which is pretty good. The problem is though (u know the 2 computers on bottom right taskbar?) well, it looks like it sends signal but doesnt want to recieve anything back. It just doesnt connect. Sometimes it does but kinda slow. I ping gateway and get response back. but when i try to ping dns servers, well, sometimes they come back with signal (most of time slow response) and sometimes I just get no response.Like right now i got ok response. and i click on google.com . and even that simple page takes a while to load. Can anyone help? Maybe point me to right direction?sorry if this thread is confusing, im not very good with this wifi stuff.
thanx in advance for taking a look at this

[Sterling_Aug]

How far away are you from the other end of the wifi connection?

It sounds like you are losing signal going thru all those cables and little black boxes.

[animeal]

just one black box. i dont know, the cable must be 20 feet long? but the thing is it worked before, just not in last couple of days.it can see the signal prtty good, but the little computers on taskbar(bottom one does turn blue sometimes for a while, meaning its not trying to send signal when i want it to?)and when i ping the dns server sometimes i get 2out4 working, sometimes none, sometimes all. hope this helps >.<

[Ol'Tunzafun]

Does that EnGenius have a model number?

[animeal]

its enGenius Senao wireless lan usb 2.0
thats all i know