Newbie problem: limited internet connection after installation!

Hi guys

I’ve heard good things about Comodo, and wanted to check it out since my current Antivirus Avira hasn’t got a firewall. But after installing Comodo Antivirus and Comodo Firewall I couldn’t connect to my network. I didn’t have any problems on my laptop where I’m still running Avira, so I figured I would try to uninstall my Comodo products and see if that caused the problem.
I’m still having problems which I never experienced before, so I’m suspecting Comodo for being the bad guy here. It’s uninstalled though, so I don’t really know what to do next :frowning:

Please help me connect to my network again…

Here’s some info:

  • Comodo Firewall Pro + Comodo Antivirus Beta 2.0
  • 5 Mbit LAN connection through a router
  • Operating system and Service Pack LevelWindows XP SP2
  • No other AV currently installed. Previously Avira

Hi 2kemon,

In most cases, you need to give svchost.exe acces to port 80,443,67,68 and 53 TCP/UDP for Windows Update to work, and to obtain an IP-adress. By the way, have you uninstalled CPF or not?

There you say you’ve uninstalled it, but here you say you haven’t:

Also you say you got Comodo Antivirus, but no AV installed?

Would help me to solve your problem if I knew if it’s installed or not :wink:
Anyways, try adding this rule to CPF(Open up Comodo->Secuirty->Application Monitor):

Application: C:\WINDOWS\system32\svchost.exe
Parent: C:\WINDOWS\system32\services.exe or ‘Skip parent check’

Action: Allow
Protocol: TCP or UDP
Direction: In/Out

Destination port:
A set of ports: 80,443,67,68,53



Hope that works.


Hi ragwing

Thank you for your reply.

I can see that my first post was confusing. Actually at the moment I havent got any firewall or antivirus installed. But I think I’ll re install Comodo AV and FW, and follow your instructions. I hope it will help and I’ll post the result.

thx again…

kind regards, 2kemon


It worked like a charm! I really appreciate it ragwing.
Being able to help without knowing what’s installed or not is quite cool :wink:

Now I’m a Comodo user and feeling safe!

(:CLP) :■■■■

No problem, glad it worked, hope you’ll enjoy Comodo’s products ;D

Ragwing (L)

Heey ragwing,

Excellent job of reading between the lines, figuring out the root cause and not getting sidetracked with effects.

Great job and much apprecaited fro yoru help.

Ewen :slight_smile:

Glad you appreciate my help too Panic ;D
I guess a cool guy would say this: I just did my job (:KWL)