Check for Signature Updates - Failed

Is Comodo updating their servers or something?

I just got a notice on my taskbar telling me that the virus database hasn’t been updated for two days.

If I force it to update the “Check for Signature Updates” fails while all the other updates appear to go through just fine.

Nothing has changed on my computer lately. Is the problem on Comodo’s end?

I have no idea where to manually download signature updates from the site as I never had to before. I haven’t had any luck finding it on my own yet.

Hi MurderHeWrote,

If this issue persists, please try to check for possible problems with your installation using Diagnostics or/and by updating manually.

Not that I’m aware of.

Here.

Well, diagnostics doesn’t find anything. I tried uninstalling and reinstalling with the same results. I also find that I am unable to do a scan now because of this problem.

I’ve noticed other people on here with the problem, but I don’t know if a solution is usually found.

I cannot figure out how to update manually with the downloaded database file.

Can you check that your using the comodo download server? http://download.comodo.com/

You don’t need the proxy/authenication stuff unless you use a proxy server.

Click on the (?) > About > “Import Virus Database”.

If the issue persists, please try this work-around & come back with results. Thanks.

Are you sure it’s download.comodo.com ? If you go to that page, it produces a 404 error.

That’s because it’s not a website. It’s used by CIS to internally download updates.

for example download.comodo.com/cis/download/installs/3000/standalone/cispremium_installer.exe gives you the full CIS installer but you can’t go to download.comodo.com through your web browser.

Download.comodo.com errors out for me in CIS, as well. Are there any other alternative comodo site addresses to use as a workaround? Also, thanks for clarifying that.

Comodo hasn’t change their servers, are you using a vpn or anyother internet firewall? Also, I recommend scanning with malwarebytes, maybe your computer got infected? https://malwarebytes.org

Tried scanning with malwarebytes. No malware.

Strange, I’ve been able to auto-update for months without any problems.

I also added downloads.comodo.com to the update section in CIS and CIS reported that there were no further updates. Maybe the update server changed at some point?

Wait, is the problem that you are having resolved? If so, that’s great!

Here is my Comodo update server settings, for reference.

[attachment deleted by admin]

Those settings in your image are the ones that worked until today. Today, I also added downloads.comodo.com and I no longer got an error message about the virus signatures not updating.

Can you also please post in this thread, instead, since it’s mine:

https://forums.comodo.com/antivirus-help-cis/cis-703177994142-virus-signatures-wont-update-t106505.0.html

It’s also sounding like comodo might have changed the update server address for some reason.

At the moment I cannot check anything.

I uninstalled and reinstalled a couple of times with no change. Now when I tried to install it again, I am getting a “the package is corrupted” error and the program fails to install.

I started a topic for that problem by itself. Why would the .exe file on Comodo’s site be corrupt?

Can you check that your using the comodo download server? http://download.comodo.com/

You don’t need the proxy/authenication stuff unless you use a proxy server.

After freshly installing CIS again, the server shows http://download.comodo.com/ under the proxy settings, so that is not the problem, unless I am missing something about this discussion of downloads.comodo.com that’s going on. My settings are currently identical to that in the shared picture. I tried adding downloads.comodo.com to the list and no change.

Click on the (?) > About > "Import Virus Database".

That worked. I can update manually at least, but still not scan.

If the issue persists, please try this work-around & come back with results. Thanks.

I tried that fix and it did nothing. I have Windows 7 Pro, but it did not fix my problem.

Comodo hasn't change their servers, are you using a vpn or anyother internet firewall? Also, I recommend scanning with malwarebytes, maybe your computer got infected? https://malwarebytes.org

This reply wasn’t for me, but I tried Malwarebytes as well and it found nothing. I have no idea what a VPN is and my only firewall is what came with Comodo. I’m not sure of what default firewalls or such come with Windows 7 if any.

Try changing your DNS servers to opendns

https://support.opendns.com/entries/36904770-Configuration-for-Windows-computers

Maybe your current dns server isn’t looking up for comodo’s update server.

Try changing your DNS servers to opendns

https://support.opendns.com/entries/36904770-Configuration-for-Windows-computers

Maybe your current dns server isn’t looking up for comodo’s update server.

That didn’t do anything either.

Funny thing though, my DNS servers were blank. Maybe that has to do with my static IP, I don’t know. Before anyone asks why I need a static IP address for, I use Bittorrent occasionally.

You should probably contact Comodo staff about this since it might be a problem with the program connection to their server from your geographical location.

https://support.comodo.com/index.php?/Tickets/Submit

Send a support ticket to Comodo, hopefully they can resolve your problem.

I submitted a ticket, but I don’t feel that much can be done if others haven’t been able to solve their problem.

I don’t understand what it going on. I have done nothing new to this computer lately. Why this has to happen after touting how good Comodo is to everyone, I don’t know…

The only thing I can think of is a couple of days ago Windows 7 installed some new Windows Updates… I have no idea what…

Ok, something weird happened…

I went about doing some packing of junk I didn’t want anymore and was away from my computer for about 2 hours or more. I come back to find it rebooted itself and installed more Windows Updates. Now the Signature updates are going through and it appears to be able to scan because it performed a quick scan while I was away from the computer.

However, a new error has appeared. Now it says the website database updates had an error. All the rest have gone through except that.

This is turning into a merry-go-round… well, at least the first problem appears to have fixed itself… now for the new one…

Windows Updates have a long track record of inadvertently breaking non-Microsoft program functions, so that could very well be causing it. If you can, go mention that in your support ticket.