“Timeout was reached as flatpak took too long to return results”

eos-diagnostic-180809_194735_UTC-0300.txt (1,0 MB)

Please follow the last set of steps on https://support.endlessm.com/hc/pt/articles/208416346-Como-fazer-um-registro-de-depuração-debug-log-do-Endless-OS- to get verbose debug output from the app center.

gnome-software-verbose.txt (2,3 MB)

20:25:06:0956 OSTree _ostree_fetcher_should_retry_request: error: 2633:0 Erro ao resolver “ostree.endlessm.com”: Nome ou serviço desconhecido, n_retries_remaining: 5

What do you see if you access https://ostree.endlessm.com/ in a web browser? (You should see “403 Forbidden”.)

Weird. What if you run ping -c10 ostree.endlessm.com in a terminal?

You posted a comment, since deleted, to say that updating to the 3.4.7 beta fixed this problem. I guess this means that it sometimes works? Are you on a slow or unreliable internet connection?

PING d34luyo45ufbec.cloudfront.net (54.230.59.21) 56(84) bytes of data.
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=1 ttl=240 time=20.6 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=2 ttl=240 time=17.8 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=3 ttl=240 time=19.3 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=4 ttl=240 time=19.3 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=5 ttl=240 time=19.8 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=6 ttl=240 time=18.0 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=7 ttl=240 time=18.4 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=8 ttl=240 time=22.8 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=9 ttl=240 time=18.1 ms
64 bytes from server-54-230-59-21.gru1.r.cloudfront.net (54.230.59.21): icmp_seq=10 ttl=240 time=17.3 ms

--- d34luyo45ufbec.cloudfront.net ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9014ms
rtt min/avg/max/mdev = 17.362/19.195/22.886/1.564 ms

Yes

Reliable connection

Since this looks like an intermittent DNS resolution problem, could you try going to the network settings, changing your DNS servers to 8.8.8.8 and 8.8.4.4 (these are Google Public DNS), rebooting, then seeing if this problem still occurs?