What do you mean with "overload the GUI"? What do you mean by "reset DNS" and "register DNS"?
Installed a package like for example resolvconf? Modern packages create /etc/resolv.conf in volatile storage, while Enigma expects the file to be persistent. If it is volatile, you lose fixed DNS IP's after a reboot.
So after entering dns. As the current reload the image or completely tuner, then again you need to check dns again. /etc/resolv.conf is present.
Recently, for no apparent reason, the image of OpenPli 8.2 began to reset DNS. I register again, I keep everything working. As soon as I overload the GUI, I have to register DNS again. Can this be eliminated somehow?