Comodo Firewall - Problems After Two Weeks of Use

I have been using Comodo firewall since version 1.0. I have not had any issues with it blocking Firefox or any other program that I did not want it to. In fact I installed it on my Dad’s PC (he is not computer savvy at all) and he has not reported any problems with it either. The product has improved a lot since the earlier versions and I even sent a message to the creator through the Comodo forums thanking him for the effort he has put into it. He replied quickly and seems like friendly person. IMHO it is the best free firewall avaliable. So I look forward to the future enhancements to this Firewall and will continue to use and recommend it.

I recently installed Comodo as I was sick of the ever more bloated Zone Alarm falling over whenever I used a P2P application. However I’m rapid;y losing patience with Comodo (which in most respects seems to be a nice piece of software) due to it’s stubborn determination not to allow me to use Firefox. I’ve lost count of the number of times I’ve told it to allow Firefox to access the net (and remember that I’ve allowed it), yet periodically it will come back and ask me yet again. Damned annoying!
So it looks like I’ll be going back to Zone Alarm
Shame.

It may be that the signature (i.e. version number, hash, etc) of your browser changed, perhaps from the installation of an extension and that the browser was then blocked by comodo, either by a direct user blocking or by comodo’s inbuild rules. You can always check the status of an app in the settings.

I am using one lan card for conecting to internet via wireless odem and to work net. Firs i used ZA but after trying t remove a program from its list it went crazy. Then I installed comode and after that I have very offten pproblems connecting to nternet - asignes wrong IP and very often have problem connecting to server in work. When I “Allow All” the it is fixing the problems - no firewall at all. I tried to allow specifialy the server IP in the network monitor but did not help. Anyone to advise what to do

My bad, corrections:

1) Select “Security” tab (on top)
2) Select “Advanced” tab on left
3) Select configure under “Advanced attack Detection and Prevention”
4) Select “Miscellaneous” tab
5) Uncheck check box “Block fragmented IP datagrams”

Sorry for the mistake.

I am so sick and fucjkign tired of comodo popping shiyt in my face about different programs trying to use the browser to connect to the internet — have a few progs open notepad being one of them … then all of a sudden comodo says notepad MAY be trying to use IE to access the internet, notepad?? .. comodo seems like one of those pesky snoopy employees that runs to the boss with every little shiyt hoping to gain points … it gets its first flying lesson as soon as I am done with this comment .. right through the fucjkign window….

Have a question for you. I have took out all Norton products on my system and keep getting the NIS for a firewall. How can I get rid of this due to having two firewalls showing up @ the same time. And yes, I have gone through their removal process but it still won’t rid the “varmin”.

All help is appreciated!

I gave Comodo 2.4 a try and it trashed my registry.
XP was able to recover an older registry, but many of my settings were lost.
I will not be using it again.
I use the old Sygate Personal Firewall just for controlling outgoing applications. I’m behind a router.

My problems arose after only a few days of use. I would lose internet connectivity during a normal session. The Time-Warner diagnostic routine would flag my system as having changed from dynamic to static access. I couldn’t confirm this by viewing my network adaptor’s properties however…all looked normal there. Running the repair would correct the issue tempoarily. Other times it would diagnose corruption in my TCP stack and it was unable to effect a repair. I would have to reboot my modem, reboot my computer and/or run the XP network repair to correct the issue. This got old fast. I uninstalled Comodo and reinstalled ZA free. This helped, but the issue would intermittantly crop up. I finally ran a System Restore point to completely resolve this…although strangely, the restore point I took at the Comodo install was not useable.

I had the same problem with Firefox and…no way to make it work!

I found 3 workarounds:
a. Allow All traffic from Comodo (which means no FW at all!)
b. Turn-Off Comodo Application Control Rules (sounds still very unsecure)
c. Delete Firefox-related Application Control Rules and let Comodo to learn by asking you again (recommended)

IMPORTANT: close Firefox to allow Comodo to learning again about it. I spent hours enabling manually any possible traffic for Firefox in Application Control Rules and I didn’t manage because Firefox was still open.

I adopted c. also with Voipstunt as my wife blocked it accidentally and it worked fine.

Hope it will be useful to somebody

Ciao
Simone

I agree, thanks simone :). You helped me!

Hi Unclown,
Thanks for the info.
Ron

For the past week(s) Comodo has driven us nuts with its continuing to learn after upgrading to version 3. I never thought it would end! Repeatedly I responded to allow it to access Mozilla and many other items and it apparently refused to stop with the messages inquiring about allowing them. E-mail was especially a bother. I wish I could tell you what has now caused it to relent and start to cease on some of these. I came very close to uninstalling it. I never found these problems with the previous version.

I have some similar problems, but with Sygate personal firewall.

If you use P2P program over night and try to surf on net at the morning, the Sygate Personal Firewall program freezes firefox and IE traffic. SPF dosen’t recognize firefox or IE program at all and so it dosen’t allow it to access to net. Even restarting the program dosen’t help, you need to restart whole windows or shut down SPF to surf on the net.

Zonealarm free version has been working well, but i’m not satisfied to how it controls svchost.exe traffic. If you block svchost traffic, you can’t surf on the net. If you allow it, it will make unneccessary access to net and downloads, even if you turn off windows automatic updates from services.msc.

First time I install Comodo latest version today. I installed it without defense+ since in my ignorance I think it is too much. I use avast as an av.
I just gave aceess to first pop ups from firewall and allowed programs I use usually like utorrent, emule, soulseek.
I use it in Train with safe mode. No problems whatsoever. No slow surf nor downloading torrents. Perfect.

Am I missing some configuration? at gr.com it shows stealth mode for all ports.

thanks!

Ho yea!!! Unflippen real. Before I slam COMOHOMO I have to say this, Sygate is dead. If you like using 4 year old software, please continue to use it. No updates since 2004 when NORTON bought it!!

COMOHOMO locked it up good! I’ve used just about every software firewall there is for the last 10 years & none have done this. I decided I’d do the expert install! HA! Trouble is that it locked me out of everything. I couldn’t even shut down my machine. NOTHING worked, no programs, nada. Hard boot & F8, safe mode, uninstall!! Thank GOD it it let me back to have “permission” to my PC!

What a load of crap this Comodo firewall is. Uninstall you BAS***D!!!. No wonder it is free! once it’s there there is no getting rid of it, it really fu**s your machine up. Are the programmers thick or what?, how many times have they been told about this issue but still do f**k all about it!!

Running comodo firewall for a couple weeks now and was mostly liking it, after a long running NIS nightmare that Norton premium support could not even fix on their nickel. Just now gave a new trusted executable (that does run OK on my other systems) permission to run and system went crazy. Cannot run anything now. All access to any program, picture, doc, control panel, regedit, etc is denied with “cannot access the specified blah blah as I do not have the permissions” and so on. Well i am the only user and also admin.

I can’t even shut the thing off, as I do not have the permission to do that either.

Can’t uninstall anything, can’t run anything,and can’t shut it off. I’d say this firewall works pretty well… Worse yet, the only pc I now have that works is my wife’s Vista machine that i’m typing this on… Open to suggestions.

I can’t recall having more problems installing a piece of software in more than 25 years! It looked nice and I hoped it would work. First I got a Blue Screen of death each time I tried to use a browser. Then I found it was not listed in the installed programs list so I had no way to uninstall it. I won’t go into all the rigmarole I went through to get rid of it but I will say I was grateful when it was gone. It’s so nice to have Zone Alarm Pro working so inconspicuously. I can only assume it was incompatible with Avast 4. What a pain in the ass!

Yesterday after two weeks of pretty solid performance from 3.0.21, I found I couldn’t run a single program in my start menu. Everything just gave the error ‘don’t have permission to access’. Trying to view or modify the executable or re-take ownership gave the same result. Being a domain admin, I checked the permissions on the executables and everything was hunky dory. After some small amount of panic I also realized AVG and BOClean icons were not in the tray and the comodo icon wouldn’t accept a right click. I remembered the ‘my safe files’ list or whatever it’s called and suspected this ‘feature’ which I have never actually used. Into safe mode as local admin, uninstalled comodo and presto-changeo, I have a working machine again. I have machines with ZA free and ZA pro as well as Symantec and have never run into this before. I am seriously disappointed. I am going to install it again (they have a name for people like me..) and try to keep better track of what happens when. Thanks for providing this space.