Hello, Whenever one of my client device connect to the router (eth plugs in, activate wifi on phone) and does a DHCP request, all outgoing traffic (WAN) is disabled during an approx. 30secs. After that, everything is back to normal... Through these 30 secs, LAN networking is still OK. Someone told me it could be a broadcast storm but my wireshark is not capturing so much of broadcast while the WAN is out. I'm having this problem coming back each time I'm trying something advanced on my WNR3500L (and even on a WRT54GS v4) and on different versions of Tomato (Vanilla/K2.6). So far, this problem happens when I tried (separately) to do IPv6 brouting (=IPv4 Nat + IPv6 native) and more recently dual wan IPv4 ... I can't see the relation between those two... Big thanks.