I don't know if there's help for this but I have an issue that happens only with gargoyle, not openwrt. I am running a Buffalo G300NH with everything stock, except for htop and nano installed through opkg.
I have a line that has 25/25mbit service.
Verizon FIOS has video on demand, as I see in connection list, it is through UDP. If I run one HD stream, it takes 16 mbit. I am using dynamic downstream QOS because the video on demand traffic does not count towards my speed limit. The cable boxes are set to highest priority QOS up and down through quotas.
The issue is that when running JUST one HD stream, with no other traffic (way below my max normal limit of 25 mbit), if I try to access a new domain name, I get a split second lag in the video on demand. It doesn't happen with already looked up sites, nor when I max out the download and/or upload speed with torrents/etc.
I tried running dnsmasq at nice 10 and up, same issue. Also, I have bwmon disabled.
Youve got a default QOS which not controlled by Dynamic QOS
I mean the qos that can change downstream speeds, (qosmon). "active congestions control (Download Direction)"
I disabled it, no problems, then I re enabled it and the problem seems to be gone. Just to be sure, I modfied /etc/init.d/qos_gargoyle line calling qosmon to have nice -n 5 added to it, but turning nice down back to 0 can't bring the problem back, oddly enough!
Ok, I narrowed it down with a bug... for some reason my download and upload qos config page was glitching up and not saving Layer7 based rules. So, I reflashed and recreated basic rules. No skipping. As soon as I added the layer 7 rules (at the bottom), like bittorrent, edonkey, voip, etc... it started skipping again.
So, for some reason, adding L7 rules to the bottom, even if not part of the traffic makes the router "skip" a split second, affecting UDP streams, such as FIOS video on demand.
P.s. I noticed that [for me] I can only upgrade firmware or restore backed up settings via firefox. Yet altering settings works best in ie - anyone else had similar experiences?