There's a (private, password-protected) WiFi network (not under my control) which at first did not work* for my laptop - until I disabled the option that caused it to use google's DNS server.
[*] not working means that the laptop was connected to the LAN, but had no internet access.
What are the security/privacy implications, if any, of using one or the other? Is it a sign that something fishy is going on if
220.127.116.11 is not working?