Failed to connect to Nextcloud - Host not found - Linux Client

OS: Linux Mint 18.3 Sylvia
Desktop: Cinnamon 3.6.7
Client: Version 2.3.3.

Running NC 13.0.4 on FreeBSD 11 VM/esxi 6.5

All my clients are able to connect, but my Mint desktop lost access - Client showed server offline.
Removed the account and got error connecting to the server;
Removed/reinstalled the client and got same results;

Error: Failed to connect to Nextcloud at https://site.domain/status.php: Host site.domain not found.

I’m able to open the site using the browser;
Status.php is also available ({“installed”:true,“maintenance”:false,“needsDbUpgrade”:false,“version”:“”,“versionstring”:“13.0.4”,“edition”:"",“productname”:“MelloCloud”})
Certificate is valid:

Server Key and Certificate #1
Subject site.domain
Fingerprint SHA256: ad06cfea5a0c55e8b9d0b48f11e97752687301266b6ec4019427902504302ba5
Pin SHA256: c1nhZYuUrJlb/nqLJNmE59lyLgxGwRkfFMYzHlrh4bw=
Common names site.domain
Alternative names site.domain
Serial Number 039ba01136669ea9b51864a1beaf7f889
Valid from Thu, 05 Jul 2018 15:00:05 UTC
Valid until Wed, 03 Oct 2018 15:00:05 UTC (expires in 2 months and 25 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer Let’s Encrypt Authority X3

Any ideas will be appreciated.



I am facing the same issue.

Did you finally resolve that problem ?


Due to the fact that your desktop isn’t able to connect to the server, I would start debugging the problem by executing

  • ping “ip-address-of-server”
  • nslookup “fqdn-of-server”