Internet stops working then comes up again

Hello,
I use astaro 8.201 free edition, the Internet works fine if I only use one thing at the same time, example surfing on the web.

But when 2 persons or if I use multiple Internet access programs (example Spotify, surfing, and running a game) at the same time the server stops working.

When this occurs I can ping IP addresses, but not access the ip address over HTTP. All DNS function stops working, for example i can ping 8.8.8.8 but not ping google.com. And other programs that doesn't rely on addresses (example spotify or skype) still works

Also, when this occurs I cant access my ASG server over HTTPS.

This is just some of the DNS proxy log when the problem occurs
2011:09:08-20:47:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.36.10#53

2011:09:08-20:47:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.32.10#53
2011:09:08-20:47:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.34.10#53
2011:09:08-20:47:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.38.10#53
2011:09:08-20:47:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.32.10#53
2011:09:08-20:47:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.34.10#53
2011:09:08-20:47:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.36.10#53
2011:09:08-20:47:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.38.10#53
2011:09:08-21:02:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.32.10#53
2011:09:08-21:02:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.36.10#53
2011:09:08-21:02:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.34.10#53
2011:09:08-21:02:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.38.10#53
2011:09:08-21:02:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.36.10#53
2011:09:08-21:02:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.34.10#53
2011:09:08-21:02:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.32.10#53
2011:09:08-21:02:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.38.10#53
2011:09:08-21:17:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.32.10#53
2011:09:08-21:17:06 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.34.10#53
2011:09:08-21:17:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.38.10#53
2011:09:08-21:17:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.36.10#53
2011:09:08-21:17:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.32.10#53
2011:09:08-21:17:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.34.10#53
2011:09:08-21:17:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.36.10#53
2011:09:08-21:17:07 asgv8 named[5640]: unexpected RCODE (REFUSED) resolving '40.48.194.173.in-addr.arpa/PTR/IN': 216.239.38.10#53


Im sure its something wrong with the settings in the ASG8.2 server or something because I've tried to bypass the ASG8.2 and the problem doesn't remain without it.

What should I do ???
Parents
  • Hi, Holm, and welcome to the User BB!

    Just a guess...

    Check your SMTP log for 173.194.48.40 - I bet you find emails rejected for not having a valid RDNS entry.  If this is someone you want to receive emails from, you might want to add an exception for RDNS or suggest that they do a better job of managing their public DNS records at their ISP. [;)]

    The next time this happens, go to 'Support >> Advanced' to see what's using so much of the CPU.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Reply
  • Hi, Holm, and welcome to the User BB!

    Just a guess...

    Check your SMTP log for 173.194.48.40 - I bet you find emails rejected for not having a valid RDNS entry.  If this is someone you want to receive emails from, you might want to add an exception for RDNS or suggest that they do a better job of managing their public DNS records at their ISP. [;)]

    The next time this happens, go to 'Support >> Advanced' to see what's using so much of the CPU.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
Children
  • I cannot access the HTTPS to check when the problem occurs, however I checked it via SSH and there was no process taking up any significant amount of cpu.. I don't think the problem lies in the Hardware, maybe it can be fixed with rules??

    Because i cannot reproduce the problem (at least i haven't succeeded with it) when I use the rule ANY > ANY > ANY > ALLOW

    Heres some pictures with my settings.
    Ive also tried to use internal (network) instead of my own definition. But it has the same function and that didn't help.