Internet problems after installing firewoll

Hi all.
I’d just begin with my settings:
OS: Windows 7 Ultimate
AV: Nod 32 v.4
Router: Sitecom
Connection: Cable
DNS: My own, not Comodo’s

Ok.
The problem is that my internet seems to be acting weird after installing the firewall(Which is quite normal)
Browsing speed is slow or very slow.
Did some speedtests and I was able to reach my full dl speed… ???
But for example when I log my email(gmail) a messeage saying that I have network problems, because the browsing speed is slowww.
And another example, when I go to justin.tv the stream loads, but the chat keeps saying loading chat…LOL.
And also sometimes when running a live stream radio/tv it isn’t really fluid, and sometimes you hear a cracking noise(Like spinning an old LP).
Some settings screenshots:
Firewall behavior settings ALERT

http://img168.imageshack.us/img168/2651/firewbehaviorsettingsal.png

Firewall behavior settings GENERAL

http://img40.imageshack.us/img40/7070/firewbehaviorsettingsge.png

Firewall events

http://img41.imageshack.us/img41/5584/firewallevents.png

Global Rules

http://img41.imageshack.us/img41/2530/globalrules.png

Intrusion Detection

http://img179.imageshack.us/img179/4624/intrusiondetection.png

At misc only the first box is ticked.

There are several things happening. Let me walk through them step by step.

It looks like you have blocked the traffic for Download Accelerator Plus and Comodo. Go to Firewall → Advanced → Network Security Policy → Application Rules → now look up DAP and Comodo Internet Security and set them both to outgoing only. When needed you can also set DAP to Browser.

It looks like for Soulseek you have not opened port 21266 TCP. Here is how to.
To open the port TCP 21266

Firewall → Advanced → Network Security policy → Global Rules → Add → fill in the following:
Action: Allow
Protocol: TCP
Direction: In
Description: Incoming Port

Source address: Any
Destination Address: Choose MAC address, Single IP address (only when it is fixed) or Host Name
Source Port: Any
Destination Port: 21266

Then push Apply → Now make sure that the new rule is somewhere above the basic block rule(s) as the bottom (the block rules have red icons) → Ok.

The incoming traffic for which no application is listening, that why it bounces at system, suggests there is an open port with number 33834.

Thanks a lot for your fast reaction.
Some notes to make:

I didn’t understood the last line.

The incoming traffic for which no application is listening, that why it bounces at system, suggests there is an open port with number 33834.

About soulseek, in my eyes it worked without any problems :-X
I could do anything with it before the Firewall was installed, and UL/DL speeds were quite fine, but I applied the rule anyways(Don’t know why it showed that soulseek was blocked in the event viewer, people could download files from me)

It looks like you have blocked the traffic for Download Accelerator Plus and Comodo. Go to Firewall --> Advanced --> Network Security Policy --> Application Rules --> now look up DAP and Comodo Internet Security and set them both to outgoing only. When needed you can also set DAP to Browser.

There is no DAP in my list(And yes I know what prog DAP is ;))
And Comodo always been as you suggested.

http://img179.imageshack.us/img179/5707/applrules.png

And still the browsing is mmm, not smooth at all.
Did some spd tests:
With firewall @ speedtest.net

@Ip-adress.com with firewall
Last Result:
Download Speed: 14064 kbps (1758 KB/sec transfer rate)
Upload Speed: 1247 kbps (155.9 KB/sec transfer rate)
Tuesday, September 08, 2009 17:41:55 PM

@ Speedtest.net without firewall(earlier test)

And also sometimes when running a live stream radio/tv it isn't really fluid, and sometimes you hear a cracking noise(Like spinning an old LP).
I overlooked this line in your topic start. This a symptom of a well known problem that is under the devs scrutiny.

The problem revolves around Deferred Procedure Calls that may arise when there is lot of internet traffic going on over prolonged period of time. Think p2p traffic and streaming for hours on end.

There is a long topic about it. I will quote the head developer:

Currently this problem is not fixed until further notice. You can try CIS 3.5 instead. Notice that you cannot export your current CIS configuration to 3.5 due to changes in how rules are stored. Neither can you use the AV component of 3.5 because of changes to the AV database format.

Ok I unstalled it, and tried to dl/install CIS 3.5

Just want to make sure if I have the right one.
Filename:
CIS_Setup_3.5.54375.427_XP_Vista_x32.exe

I tried to install it, but it rolled back on me before it actually started installing.

This one is the last release of 3.5: https://forums.comodo.com/empty-t31139.0.html .

See if the roll back happens again. Did you reboot after uninstalling 3.11?

MM ok been able to install it.

But still having the same problems browsing and all is slow.
And normally I got a msg when when an appl was trying to send/receive data so I could block or allow the connection, not seeing any of that now.

That’s also the reason why DAP was in my firewall event list at the previous version, because I blocked it on purpose, didn’t had any problems wit dap anyways^^.

I think you have some problem with CIS and NOD32.
Let’s check about your system first.

1.What is the build number of Windows 7? RC? RTM?

2.Windows 7 X64 or X86?

2.Do you use CIS with CAV(comodo antivirus)? or Firewall only?

3.What kind of NOD32 do you use?
NOD32 Antivirus 4.0.437 ?
Smart Security 4.0.437 ?: You should not use CIS with Smart security.

4.What is your NOD32 settings?(web traffic and port settings)

Hi bengaa

Under firewall/Advanced/Attack Detection settings/Miscellaneous

Which boxes are checked?

Let’s make sure.
Do you use ‘Smart security with firewall disabled’?
or just use ‘NOD32 Antivirus’?

I recommend following settings for Windows 7.

1.Windows firewall: disable
2.Windows defender: disable(go to ‘services’ and disable)
3.UAC: disable
4.NIC(Network Interface Card): disable all of ‘checksum’ and 'offload’options.
change speed to 100/100 full duplex.(if your network
doesn’t work properly with this, change it to ‘auto’)

for CIS
IE8: Network Security Policy>iexplore.exe edit to ‘Web Browser’.
NOD32: for both Firewall and D+ >ekrn.exe, egui.exe> to ‘Trusted’

3.What kind of NOD32 do you use? NOD32 Antivirus 4.0.437 ? <<<< AV Only Smart Security 4.0.437 ?: You should not use CIS with Smart security.

I’ve asked him because he said he used smart security v3 before.
Smart Security has firewall+AV.
Some people use Smart Security for AV scanner with firewall off.
Like many people use CIS with CAV, D+ off.
In case of Smart security, there are many services and files are running evenif we turn off
Smart security firewall fucntion.
It makes lots of problem with other firewall softwares and programs.
Do you get it?

I always turn-off windows firewal it’s unnessesary for me else I would have Router firewall/windows firewall/ software firewall.
Windows defender is also always off, same for UAC.
So those were already off.

My NIC doesn’t have Duplex properties since it’s wifi.

And yes I use NOD32 v.4 AV, NOT smart security.
I’m using Firefox 3.5, guess the same rule applies to FF as for IE8.
Will try it later when I’m at home.

Only the first one

Ok I’ve done all of the above, but haven’t noticed any change @ all.
For the the final 2 sentences:
Adding a prog to trusted is Firewall>Common Tasks>Define a New Trusted Appls right?

If yes then I’ve done it all.
(Except for the duplex thing explained above)

Only the first one

I think it’s worth seeing if there is a difference if you uncheck that first box.

Mmm… that didn’t seem to have any effect what so ever.