mmm very simple and effective fix, thank you. i guess you were able to find out what outgoing connections there were through telnet, so you must be better with UNIX than me !
EDIT: i actually just opened the /etc/hosts file of my kobo touch running stock 3.19.5761 and saw this:
#[Google Inc]
#127.0.0.1 adwords.google.com
#127.0.0.1 pagead.googlesyndication.com
#127.0.0.1 pagead2.googlesyndication.com
#127.0.0.1 adservices.google.com
#127.0.0.1 imageads.googleadservices.com
#127.0.0.1 imageads1.googleadservices.com
#127.0.0.1
www.googleadservices.com
#127.0.0.1 apps5.oingo.com
#127.0.0.1
www.google-analytics.com
#127.0.0.1 kona.kontera.com
#127.0.0.1 infolinks.com
#127.0.0.1 online-oas.affinitygroup.com
#127.0.0.1 ad.doubleclick.net
looks like a kobo developer with a propensity towards general privacy. so naturally i removed all the hashes next to the IPs and also added OP's recommendations of
127.0.0.1 ssl.google-analytics.com
127.0.0.1 google-analytics.com