After I gave up to Ipfire for couple months , I decided to give another chance to Ipfire. But …guess what? The problem is still there. And it will be there forever since no one doesn’t change anything… I’m tired to post here, I’m tired to check infinite logs…I’m tired to see that nothing will be changed…
“New updates!! , We need your help, send money…etc” So tired… I don’t want an answer. I don’t want anything from here anymore. Bye.
Continuing the discussion from DNS, the neverending story:
It is very unfortunate that you are experiencing these errors. I don’t mean to offend you, but when there were bugs in our iPFire installations that no one (or hardly anyone else) had, we could always determine that the problem was in the individual hardware, or even in the 1-meter space in front of the computer. 
If you are still looking for a solution, it would be important to send relevant log content.
All the best, Wayne
A working DNS is very important.
Perhaps searching the forum would have helped point him in the right direction.
This may have nothing to do with his problem.
Log would help.