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Suddenly won't pass web traffic

jmirick
Running software 7.511; Qwest put in a replacement modem, right around that time it won't pass web traffic any more.  It will pass pings, email in and out, etc., but not web.  If I bypass the firewall, connect directly to the modem, web traffic comes through. Nothing apparent in the log files. Even if I open up a packet rule "anything to or from anything" is still won't let it through.  Firewall has run fine for about 2 years; up-to-date with UpToDate.  At my wits end.


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  • 0
    This sounds like an issue with the NIC connected to the new modem.  On the 'Hardware' tab, instead of 'Auto-Negotiation', try setting to the different speeds and duplexes.  If this is your own hardware, what is the brand+model of the NIC?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0
    Wow. Be careful here, changing link mode is very fragile, driver-dependent and may not work at all. If you got stuck in a manually changed link-mode, a reboot will make it apply the desired setting again.
  • 0 in reply to trollvottel
    Fiddled with both the above suggestions, but in the end it was it's persistent refusal to pass either ports 80 or 443, while passing everything else, that was the clue.  I just kept following every option and challenging it.  Turns out:  web security | HTTP/S | advanced | transparent mode skiplist:  "allow HTTP from . . . " was checked, but of course nothing in the "above list" so it blocked everything.  When I unchecked it, traffic flowed just fine.

    Don't know how that ever got checked.  The mysteries of complex user interfaces, I guess.

    My thanks, anyway.
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