HX50 Hughes NSS6 Timeouts

I've recently setup two systems (with two more in the works) connected through a load-balancing router that have website timeout issues and Skype dropped calls. The systems are all HX50 with 1.2M Prodelin dishes, 2048 down, 256 up, 20:1 contention ratio connected to NSS6 near Qalat, Afghanistan. Both of my systems maintain 92-93 signal quality and I can download 1.0-3.6 Mbps pretty much any time of the day.

The problem my users have (26 users sharing 2 connections) is that most websites will "timeout" and some are completely inaccessible (wikipedia). I've adjusted DNS timeouts, browser timeouts, and set bandwidth restrictions on all users. My ping reports look like this:

Ping statistics for 74.125.77.99:
Packets: Sent = 150, Received = 149, Lost = 1 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 818ms, Maximum = 3746ms, Average = 1432ms

That report is using 512 byte pings.

I'm working with Hughes (via ATS) to try and resolve the situation, but I'm becoming frustrated with the service. Last time I had a BW Starpro 2048/512 system with 35 users and never had this problem. I'm not sure that bandwidth is the problem now, because I can download quickly even with the problems occuring. Any ideas?

we to using NSS6 for our HUB. basically this might be network congestion or latency issue. basically hughes system give a priority based on application. default priority for ping fall on 4. since you send continues ping like realtime traffic, your ping might be consider as sensitive latency issue and priority 4 cannot afford that thing.. for a download yes you can download because of effect PEP spoofing tech.