I changed ISP's about 4 months ago which required changing the public address range I use. This included changing the IP addresses of my external DNS servers. After changing the IP's I requested the changes through NetSol and all appeared to be well. There are however some networs that do not recognise the changes (my home ISP being one of them). I figured it would just take some time for the changes to fully proliferate but there are still some networks out there that are still unable to resolve our domain name. I don't know of anything I can do on my end to resolve this issue. Any ideas would be greatly appreciated.