Which domains do I need to whitelist to get Fitbit for Android app to connect?

[jdrch]

Having a problem with the Fitbit Android app on a Sprint Samsung Galaxy S8+ when trying to connect to a Fitbit Versa. When connected to my home Wi-Fi - protected by Pi-hole using Cloudflare DNS upstream - I get the following:



But it works just fine when connected to the phone's (Sprint) 4G LTE connection.

This lead me to believe Pi-hole is blocking some request the app is making. Checking the logs, however, shows only google-analytics.com was blocked when the app was in use. That domain resolves to marketingplatform.google.com/about/analytics/. Whitelisting both of those does nothing.

The affected phone is in a Pi-hole group whose lists do not have either URL in them, so AFAIK the app should be able to connect. Could Cloudflare possibly be the issue? Any ideas?

[Odyssey13]

Fitbit customer support is doing their best, but right now be prepared for longer wait times. Please be patient. Support is limited by the number of representatives available at a given time and the hours of operation. Chat lines are open when they have live help. If you email, please know that each subsequent email will put you at the bottom of the queue, which will cause you to wait longer.

USA: call (877) 623-4997 
UK: call 0800 069 8505
INDIA: call 000 800 050 1057  

IRELAND: call 01 691 7502 (country prefix: +353)
If you prefer an online chat or email, then click for contact options
https://help.fitbit.com/?cu=1

[BigBadSubaru]

I was having the same problem, whitelisted google-analytics.com and it worked. 

[toot217]

Putting cloudfront.net on the whitelist did the job for me.