Sometimes QoS causes high Pings

[ipumuk]

Hi,

most of the time QoS works great. But sometimes I get a 100-110 Ping when playing League of Legends. Even if there is no other traffic whatsoever. The lol ports are set to highest priority. (There is nothing else set to high or highest priority. But as there is no other traffic it should not matter.)

When I turn off QoS the Ping drops to 20-30. When I turn QoS on again the Ping goes back to 100.

When I reboot the router (n66u) and try plaing LOL again with QoS enabled everything works fine again. The ping is stable at 20-25 and does not even reach 100 even if I start heavy downloading/streaming.

So far this happened to me twice and I can not reproduce the problem. Everything is working fine 90% of the time.

Any ideas?

 

[sinshiva]

hey, mind taking a screenshot of your qos rules?

 

[ipumuk]

There you go.

The Upload and Download speed is set to 90% of my actual speed.

I have no idea what "ACK, -SYN, und -ICMP" is, so I left it at standard settings.

---

While checking the screenshots I realized that the download speed was set wrongly. Of course it should say 11700 kb/s. I corrected that.

 

[sinshiva]

alright, here goes;

1.) i noticed in my testing that ranges and comma separated ports did not work well.

2.) bittorrent really messes up everything, even when you arent downloading because it still makes a LOT of connections. do not define bt ports.

3.) i made the qos up/down bandwidth slightly higher than my connection and also removed bandwidth limiters and set everything to 100% under priorities

4.) i found best results by setting dns and game SERVER ports to 'highest', setting 443 and 80 to high and never setting anything to medium or lower.

5.) i never specified mac addresses in my qos list; everything works really well for me without, but i can't say if adding MACs hurt, either; i'd play with that

6.) i prefer to have both tcp/udp specified for all my ports

with these settings, everything runs butter smooth

 

[sinshiva]

crap, forgot to add; i unchecked everything at the bottom of priorities, didn't want that stuff being re-ordered

 

[ipumuk]

alright, here goes;

1.) i noticed in my testing that ranges and comma separated ports did not work well.

2.) bittorrent really messes up everything, even when you arent downloading because it still makes a LOT of connections. do not define bt ports.

3.) i made the qos up/down bandwidth slightly higher than my connection and also removed bandwidth limiters and set everything to 100% under priorities

4.) i found best results by setting dns and game SERVER ports to 'highest', setting 443 and 80 to high and never setting anything to medium or lower.

5.) i never specified mac addresses in my qos list; everything works really well for me without, but i can't say if adding MACs hurt, either; i'd play with that

6.) i prefer to have both tcp/udp specified for all my ports

with these settings, everything runs butter smooth

Unfortunately I have to use mac addresses, ranges and the bt-port as the other devices in my household and bittorrent are the only reasons why I am using QoS at all.

Maybe the problem was caused by my wrong download speed setting. I hope that.

If the problem still occurs I will try a two rule setup only. bittorrent lowest and league of legends highest.

 

[sinshiva]

trust me on this, you will have problems defining bit torrent.

[edit/] this was my prime suspect when i read your post. everything else i said was just to help you clean up the rules

 

[sinshiva]

it appears the ports LoL listen on are 2099, 5222, 5223, 8088 and are what you should specify. it looks like you are trying to define the outgoing ports and will likely be completely ineffective as a qos rule.

[edit1/]

run CMD as administrator and use the following command; netstat -anb

use this to find the destination ports LoL use when playing and specify these in QoS [/edit1]

[edit2/] i had to run before i could investigate further, but i forgot to add; unfortunately, mmorpgs are a big pain in the butt when it comes to QoS because of having things like different realms, etc. unless LoL has a dedicated IP for each area, it might be doing something like listening on different ports for different areas. it might take a lot of trial and error to get this right