Hello, I'm having a strange problem with Shibby's Tomato running on Asus RT-N66U. Simply put, I can not connect to certain sites. Most of the internet works without problems, but a few sites can not be reached using neither http nor ping. For example, i.media-imdb.com (static files for imdb.com) and problably some servers serving parts of amazon.com. ping i.media-imdb.com times out, wget i.media-imdb.com times out, same for firefox and safari. If I use one of ip addresses that i.media-imdb.com resolves to, it still times out. The same problem manifests on my OSX MacBook (both over wifi and wire), iPad and Android phone. If I connect notebook directly to the cable modem, it works perfectly. After reconnecting cable modem back to router, it sometimes keeps working for a few minutes, but then the problem reappears (sometimes immediately). Restarting router, notebook and/or cable modem does not help. I'm running current version of the Shibby's Tomato (v106, AIO), but I got the same issue with v105. The configuration is mostly default, no VPN, no QoS, no bandwith limiting, no Tor, no Jumbo frames. MTU is 1500 everywhere (notebook and all relevant router's interfaces), the problem persisted even if I set MTU to 1000 on the notebook. I do not know much about low level networking, but the following output from traceroute seems weird. When connected directly to the cable modem, it works as expected (18.104.22.168 is one of i.media-imdb.com's IP addresses): $ traceroute 22.214.171.124 traceroute to 126.96.36.199 (188.8.131.52), 15 hops max, 52 byte packets 1 * * * 2 ip-86-49-52-193.net.upcbroadband.cz (184.108.40.206) 46.204 ms 22.465 ms 18.159 ms 3 220.127.116.11 (18.104.22.168) 39.922 ms 19.748 ms 13.985 ms 4 cz-prg01a-ra1-ge-0-0-0-v50.aorta.net (22.214.171.124) 216.792 ms 11.555 ms 55.035 ms 5 prag-bb1-link.telia.net (126.96.36.199) 22.375 ms prag-bb1-link.telia.net (188.8.131.52) 56.875 ms 81.473 ms 6 ffm-bb1-link.telia.net (184.108.40.206) 146.676 ms ffm-bb2-link.telia.net (220.127.116.11) 32.737 ms ffm-bb1-link.telia.net (18.104.22.168) 110.634 ms 7 ffm-b10-link.telia.net (22.214.171.124) 37.307 ms ffm-b10-link.telia.net (126.96.36.199) 58.622 ms ffm-b10-link.telia.net (188.8.131.52) 56.797 ms 8 a100row-ic-152178-ffm-b10.c.telia.net (184.108.40.206) 121.995 ms 163.613 ms 90.763 ms 9 server-216-137-61-109.fra2.r.cloudfront.net (220.127.116.11) 94.641 ms 49.204 ms 129.889 ms However, when I connect over the tomato router, I get this: $ traceroute 18.104.22.168 traceroute to 22.214.171.124 (126.96.36.199), 15 hops max, 52 byte packets 1 tomato (192.168.1.1) 4.621 ms 4.313 ms 4.224 ms 2 * * * 3 ip-86-49-52-217.net.upcbroadband.cz (188.8.131.52) 52.182 ms 16.215 ms 19.246 ms 4 184.108.40.206 (220.127.116.11) 59.784 ms 117.214 ms 34.223 ms 5 * * * 6 * * * 7 * * * ... and so on, stars only until the limit. How is this possible? What's the difference between traceroute packet sent directly to cable modem and via router? Why it stops working after few hops? Could this be the cause? Does anyone please have some idea what the problem is? Or at least what diagnostics should I try next?