When a device reports a DNS malfunction, an alert in the form of a red triangle will be shown in the status column of the Access Points or Switches list, as depicted below. On mouse hover, the message DNS malfunctioning will pop-up.
What does it mean?
This means that the device is not able to resolve the Plasma Cloud check-in server hostname. The potential cause is that the DNS server used by the network may not be reachable or may be malfunctioning.
Plasma Cloud devices rely on the local DHCP server to obtain the DNS settings, therefore, all users in the same LAN (including WiFi and wired clients) may be affected by this issue and may be unable to communicate with the Internet.
What to do?
To solve this issue, you will have to ask your network admin to check that the DNS settings propagated in the network via the local DHCP server point to the correct DNS servers and verify that the DNS servers are functioning correctly.
Please note that statistics sent by the device while the DNS malfunctioning warning is in place are ignored and not stored by the cloud. For this reason, this issue should be addressed as soon as possible.