Curl error 7: Failed to connect to config.uca.cloud.unity3d. com port 443: Connection refused

Hi,
I'm using Unity Remote Config, but it is not working on Editor and Android Build. After checking logcat Android, i found out, it have error message:
[quote]
2020-12-31 18:39:00.938 24243-24328/? E/Unity: Curl error 7: Failed to connect to config.uca.cloud.unity3d.com port 443: Connection refused

(Filename: Line: 813)
2020-12-31 18:39:00.955 24243-24331/? E/Unity: Curl error 7: Failed to connect to cdp.cloud.unity3d.com port 443: Connection refused

(Filename: Line: 813)
2020-12-31 18:39:01.692 24243-24334/? E/Unity: Curl error 7: Failed to connect to config.uca.cloud.unity3d.com port 443: Connection refused

(Filename: Line: 813)
2020-12-31 18:39:01.706 24243-24339/? E/Unity: Curl error 7: Failed to connect to cdp.cloud.unity3d.com port 443: Connection refused

(Filename: Line: 813)
[/quote]

Then i decide to use 1.1.1.1 Warp VPN on my Phone and PC, and Remote Config suddenly working on Editor and Android.
I did't understand what happen, i don't think my ISP block Unity Domain or something, because i'm still access Unity Forum and Dashboard without VPN.

Look like Unity Remote Config block our country or something?

What country are you in?


I'm from Viet Nam

Hi, Any support?


Sorry, I don't have any further suggestions. We don't block IP's at this end, it's due to your local network.


So can you suggest me some ways to debug this?
Because as i said before, i try VPN and it is working.

Hi, has this bug been fixed yet?


Lỗi này bác fix được chưa, tôi cũng mới bị lỗi này. Không hiểu nguyên do là gì


It's not a bug, it's a network issue on the client. Some countries like India and China have national firewalls that can block IP addresses. There is nothing we can do about that. The fact that VPN works confirms the client side issue.

I'm in Vietnam but it works fine on simulator but not on my phone


That might be expected if your network has not allowed the IP addresses, as mentioned. There is nothing we can do at our end, we do NOT block access, it's an open public endpoint.

I'm seeing this from a player in California.


Can you provide more details? How do you know that a user is seeing this error, where does it show up?


The player was having an unrelated issue in my game, so I asked him to send the log file. That's when I noticed it, many, many times in the logfile. I asked where he lives, and he told me California.

Here is a quote from the player:

I'm in Southern California, and yeah I noticed a lot of failed port 443 connections to a config.uca.cloud.unity3d.com. I wonder if there is some residual effect there with the Let's Encrypt cert expiring last week that seems to have plagued a lot of applications all over the net, or if there is something on my end with nordvpn and/or windoze security causing that connection failure.

Attached is the player log in question.

7555585--934276--Player.log.txt (30.5 KB)


Please try with Remote Config 2.1.2 which was just released yesterday.


Is that a thing in package manager?

BTW, I'm not using the remote config feature. I'm just using analytics.


Sorry I misunderstood, you're in the Remote Config support forum. That one user may have a local network policy that blocks that URL. NordVPN has known issues with Unity, for example.