Hello! My network was just changed from a vanilla ADSL connection to direct ftth. There is now a network connector with a 100MB/s entry, which gets routed to a Buffalo Broad station. I'm having some troubles and my debugging so far has not been successful, so I'm hoping some more experienced hands can give me some advice. First of all, my previous setup was working exactly as I wanted. Essentially, when making the switch to the new network, on my firewall/proxy machine, I just did: adsl-stop (to stop the pppoe daemon) ifconfig eth0 new.ip.address up route add default gw ip.address.of.broad.station Then in my iptables, I changed: -A POSTROUTING -o ppp0 -j MASQUERADE to -A POSTROUTING -o eth0 -j MASQUERADE Here's what's happening now... Generally, I can connect to the outside world, and the outside world can connect to me. By this, I mean that each of the local machines behind my proxy can connect. However, the connections back to my own URL are sporadic. In other words, sometimes I can connect, sometimes I can't. Assuming my domain is my.company.com, when I try to connect to my.company.com from within my network, sometimes I can, sometimes I can't, but I have not at all figured out a pattern. When this happens, domain names are being resolved, but I get "Connection timed out" errors. I guess I first need to check to see if I can't get out, or I can't get back in. Any advice as to how/where I can look for the cause would be greatly appreciated! I suspect it may have something to do with NAT, but I'm not experienced at debugging this stuff. Thanks so much!!! David