Crazy lag once in a while will happen on any server. If it's something thats happening on a consistent basis, then we may have a problem.
I have to be honest, when I play on the Barb server I rarely experience any kind of lag.
We need to make sure the lag you are experiencing is client side (on your end) or server side (on our end). You can use the lagometer to determine this.
Here's what I need you guys to do:
What is the Lag-O-Meter?
Sometimes people get a lot of lag on their computers and don't know if it's their machine or internet connection. Well here's a little setting that's not well known called the lagometer. Basically you type in the command and it will show if you are having any connection problems with the server.
Hit the ~ key to bring down the console. It's to the left of the 1 key far left side of your keyboard.
Type in /cg_lagometer 1 to turn the lagometer on. To turn it off /cg_lagometer 0 After activating the meter you'll see a graph above your ammo display.
The blue top display is your upload connection to the server and the bottom green is the server's upload connection to you. Under optimum conditions you connection should display solid blue while the server's display should display a solid green.
If you start to show yellow spikes or bars in either display it means there are minor to moderate connection problems on the display owners end.
If it displays red spikes or bars you are having major connection problems on the display owners end.
By display owner I mean if the top display has spikes or bars it's your end, if they are on the bottom display it's on the server's end. If they're on both displays I would assume there is a problem with the connection between you and the server.
When you get a chance, take a screenshot while the lagometer is running and post it here so we can all take a look at it.
You also may want to take a look
HERE too.