Android GCM Unauthorized 401 error with PHP

问题

Recently my GCM push message notification didn't work anymore. I didn't change anything, in my Google API Console, I've registred the IPV6 of my dedicated server if the whitelist IP address.

But when I try to reach GCM service I always get an error :

Unauthorized

Error 401

Also tried with IPV4 without success...

I've tried the same script on my own computer and everything works smooth ...

Any idea would be very appreciate :)

Thanks for your help

回答1:

You need to put the server IP address in the whitelist ip addresses in google api console for GCM.

Edit: you must use Key for server apps (with IP locking) instead of browser key.

回答2:

i have had the same issue for 1 whole day ! but silly me... in your Dev console>APIs & auth > make sure your "google cloud messaging for android" is ON ! That was my mistake. And also first test by allowing all IPs.

回答3:

I had the same issue. What resolved it for me was registering my public ip, waiting for a few minutes and then refreshing the google api console page.

回答4:

I had the same problem and ended up adding "0::0/0" to my whitelist ip addresses. This fixed the problem for me. Though a better solution would be to get a real IPV6 to use for the server.

来源：https://stackoverflow.com/questions/17164354/android-gcm-unauthorized-401-error-with-php