Need to reboot often - noob help

luder

I've been having problems with my pfsense box, but I need help debugging the problem.
Problem: every 2-8 hours I will suddenly stop being able to reach certain sites. eg. amazon.com ebay.com. But, I'll do fine browsing other sites. There doesn't seem to be a rhyme or reasons as to which sites.
Today when this happened I ran a traceroute.


$ traceroute amazon.com
traceroute: unknown host amazon.com
$ traceroute google.ca
traceroute: unknown host google.ca
$ traceroute google.com
traceroute: Warning: google.com has multiple addresses; using 74.125.155.106
traceroute to google.com (74.125.155.106), 64 hops max, 52 byte packets
 1  [REMOVED for my privacy] (192.168.1.1)  0.773 ms  0.680 ms  0.588 ms
 2  [REMOVED for my privacy]   14.264 ms  14.437 ms  15.430 ms
 3  [REMOVED for my privacy]   16.331 ms  15.693 ms  17.154 ms
 4  [REMOVED for my privacy]   19.420 ms  18.640 ms  18.914 ms
 5  * * *
 6  209.85.249.32 (209.85.249.32)  20.229 ms
    209.85.249.34 (209.85.249.34)  19.417 ms  18.742 ms
 7  66.249.94.199 (66.249.94.199)  36.016 ms  23.138 ms
    66.249.94.195 (66.249.94.195)  18.884 ms
 8  216.239.46.208 (216.239.46.208)  25.750 ms
    216.239.46.212 (216.239.46.212)  25.894 ms
    216.239.46.208 (216.239.46.208)  26.818 ms
 9  64.233.174.129 (64.233.174.129)  25.593 ms
    216.239.48.167 (216.239.48.167)  26.244 ms
    64.233.174.129 (64.233.174.129)  26.215 ms
10  216.239.49.166 (216.239.49.166)  25.734 ms
    209.85.254.146 (209.85.254.146)  36.192 ms
    216.239.49.246 (216.239.49.246)  35.259 ms
11  px-in-f106.1e100.net (74.125.155.106)  26.519 ms  25.346 ms  26.101 ms

at the same time I could reach a dozen other sites.

After rebooting everything is going swimmingly. Any advice on what I can do to diagnose this problem. What other tools can I use to help the diagnosis.

I'm running 1.2.3 release i386, but I had this problem on 2.0 RC 2 but I downgraded to 1.2.3 hoping to get around this problem.
My current setup is
SUPERMICRO MBD-X7SPE-H-O (Intel 82574L) –> Asus rt-n16 running dd-wrt (but had the same problem with other routers) --> 30+ users

I'd love to hear any insight you have.

Kind regards,
Kenton

Perry

Are you using sticky connections? if not http://doc.pfsense.org/index.php/Unable_to_Access_Some_Websites and maybe change DNS provider to e.g. opendns.

luder

I don't think I have sticky connections. Correct me if I'm wrong but I would not have that unless I have a multi-wan setup (which I do not).

Thanks for the link. I've changed my DNS to openDNS for now.

As for the 6 possible causes in the article
1. How would I ensure this?
2. The LAN subnet mask is 255.255.250.0 (Status -> interfaces) in pfsense and the same on the asus router. It is 255.255.240 on the WAN if that matters.
3. Where do I set the MTU? Pinging with 1500 bytes was successful
4. Traceroute does not stop upstream - not applicable
5. Not applicable
6. Did this

I'll post back if I continue to have problems.