Local LAN unable to connect to internet



  • Good Morning…

    Using the past two updates to 2.1.1, I've noticed over a 24 hour period, users are unable to connect to LAN resources.

    Our DNS server is 192.168.1.20 with PFsense being gateway 254. Users are unable to ping DNS Server until PFsense is restarted. Openvpn mobile users are still able to login and they too are unable to ping local resources.

    Using OpenVPN, I was able to log into PFsense and reboot. After reboot, I was able to ping nodes on the LAN, including DNS. Users on LAN can now access internet.

    2.1.1-PRERELEASE (i386)
    built on Sat Mar 8 11:52:38 EST 2014
    FreeBSD 8.3-RELEASE-p14



  • I had exact problem on 2.0.3 64bits . Eventually we had to go back to 1.2.3 as it was a production system.
    Does it help if you bring LAN interface down ant then up once this happens? Also what network cards do you have and did you have this problem before? I am really curious as was planning on upgrading from 1.2.3 to 2.1.1 myself.
    You could also check mbuf. I hope you can find the culprit because this could also greatly help me.
    Thanks.



  • I honestly don't know what the problem could be…

    At the time, I restarted, and so far all was good, up until a few minutes ago. This is different though...

    Now, I am unable to maintain a steady connection with openVPN and Teamviewer connections passing thru PFsense.

    I turned off IP Fast Forwarding to see if this change will make a difference and resolve the issue.

    I'm right in the middle of setting up a broadcast server and using UBNT Edge router and programming via CLI is like wow and arrghhh! But...but....If I ever needed proof that GUI is for supermarket cashiers....I have it now!



  • you didn't mention your network cards. Have you checked https://doc.pfsense.org/index.php/Tuning_and_Troubleshooting_Network_Cards ?
    next time if LAN drops try bringing down and up the NIC, in my case that helped but then I would get the same thing some hours later and it was completely random. I didn't have those nic tune tricks applied though.
    I hope you can fix the issue otherwise I will be waiting for 2.2 release  :-\



  • Turning off IP Fast Forwarding appears to have fix the problem for me. I've been connected via openvpn for the last several hours without any drops at all.

    I'm not using any of those network cards.

    You could try the following over the course of a week or so…

    Either buy what you need or build a system for PFsense with network cards you are sure will work. If you have a spare server, or one you can borrow, fine.

    Then, either rebuild the config file from the current production system, or backup your current config file and restore it on the test system and see what happens from there...

    Personally, I'm nuts enough to rebuild the config file from scratch, just to be sure, and if that works..then yay!


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