What if changing the DNS settings doesn't fix the MNC Play error 1305?

If changing DNS settings doesn't resolve the issue, try flushing your DNS cache. On Windows, open Command Prompt as administrator and type `ipconfig /flushdns`. On Mac, open Terminal and type `sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder`. If that fails, contact MNC Play support as there may be an issue with their service or your account.