Losing connection when refreshing Q4 servers

[nightwing]

Hello all,

This just started today. When I hit refresh in the Quake 4 browser my connection to the internet gets disconnected.

I exit Quake 4 and can't browse the web but after a few seconds my connection comes back.

I then tried playing again but once I hit refresh my connection goes out. Anyone having this problem today?

I am using a router and all ports are forwarded and I never had this problem since Quake 4 was released. Thanks for the help.

[MidnightQ4]

my guess is that your router can't handle the flood of requests and is crashing and restarting itself. I would almost bet that you have a linksys, am i right?

[nightwing]

Hello Midnight,

Netgears and Dlink wireless router seems to be having this problem. Xfire also resets the router as well.

I gave up trying and purchased a linksys wireless router and all is well now.

Not sure what happened but my dlink router was fine until 3 days ago.

Thanks for replying.

[Tormentius]

Disable any TCP and UDP flooding protection on your router to resolve this issue.

[nightwing]

Can you give me an example of TCP UPD flooding protection command/option?

Maybe I can look for it in the admin window of my DLINK router. Thanks!

[MidnightQ4]

I would hazard a guess that any router that is failing from UDP floods isn't going to have any special features like that, especially on the outbound connection. Basically it was just a low end router, not your fault that D-Link makes faulty routers though.

[Tormentius]

I would hazard a guess that any router that is failing from UDP floods isn't going to have any special features like that, especially on the outbound connection. Basically it was just a low end router, not your fault that D-Link makes faulty routers though.

Dlink routers are fine but it depends on the model whether this is a configurable feature or possibly a firmware error.

In case you weren't aware, some routers (such as my own) have an actual feature which limits concurrent connections from the same IP to prevent flooding or other DoS-type attacks.

[MidnightQ4]

In case you weren't aware, some routers (such as my own) have an actual feature which limits concurrent connections from the same IP to prevent flooding or other DoS-type attacks.[/color]

ya but we are talking about outbound connections here, not someone doing a flood attack from outside. those are two different things.

[Tormentius]

In case you weren't aware, some routers (such as my own) have an actual feature which limits concurrent connections from the same IP to prevent flooding or other DoS-type attacks.[/color]

ya but we are talking about outbound connections here, not someone doing a flood attack from outside. those are two different things.

You're talking about the server browser which involves a large amount of data coming back in quick. That behaviour can trigger a flood protect, just like bit torrent did on my own network.

[MidnightQ4]

ya the data is coming back in quick, but the connection session is established by an internal computer, therefore the router should know that it is allowed traffic that is coming back. that's how "real" routers work anyway.

[Tormentius]

ya the data is coming back in quick, but the connection session is established by an internal computer, therefore the router should know that it is allowed traffic that is coming back. that's how "real" routers work anyway.

Not exactly. If DoS protection is enabled on most entry to mid-grade routers is simply limits the number of concurrent UDP or TCP connections from external systems whether those connections are allowed or not. Its a simple way of providing DoS protection on a device which isn't worth thousands of dollars. I ran into an issue similar to this on two small business grade routers in the past one of which was my own. Gaming or bit torrent both involved enough connections that it tripped this feature and dropped packets from those IPs. It not great, I know, but its the way that particular feature works.

[Zatoichi.uK]

Do you have to forward a port for q4 then? Mine seems to crash when switching maps, not sure if its the same thing.

It crashes straight to desktop and leaves it really bright.

[Tormentius]

Do you have to forward a port for q4 then? Mine seems to crash when switching maps, not sure if its the same thing.

It crashes straight to desktop and leaves it really bright.

Here's your solution:

http://www.quake2evolved.com/odium/gammafix.exe

[Zatoichi.uK]

Cool thx