Constant Logout and Can't finish campaign

Hello,
I am using PhpLists version 3.6.15 and I am having several issues. First is, when I use really any part of the interface, I am constantly logged out because of a changing IP. Now, I have read where this was an issue back in 2015 and was supposed to be fixed. I don’t know if the release then did fix it, but now I have the issue again. The other issue is that whenever I try to finish a campaign, it gets stuck on step 6 and 7, just logging me out when I try to finish them, I choose say like email for step 6, immediately logs out, no reason or error.

Look in the file config/config_extended.php for a setting to control this, then add that setting to your config.php file.

Thank you, I just had to do the CHECK_SESSIONIP to 0 from extended settings.