Thanks for the reply
Our ISP provide us devices where link is activated & what we do is just connect the devices & align the dish & our internet works. but due to some reasons we had to change our settings becoz the link was activated here transfered somewhere else. & they provide us new settings to implement, I did those settings. I changed ip's in router & changed modem settings & also in dvb. Now they are saying that settings are not good, I took screen shots of the every single page & send it to them, they were able to connect to router in their country but today they are saying they can't even connect to router. they blaming us that there is something wrong on your side, while from our side everything is configured as told, I can ping dvb inside the router. I can ping gateway from work station. I've lock on the dvb. I've send them all the screen shots of router configuration. Please ask me if there is anything Becoz i don't know what exactly i need to tell.
Thanks