You got an email from PMI for your weather station that looks like the following:
From: PV pmi Date: March 28, 2020 at 9:08:19 PM PDT To: Subject: PV pmi: admin #LatestError: Data input appears to have stopped - check your station and connections #LatestErrorDate: 3/28/2020 #LatestErrorTime: 9:00 PM Station:The bottom line is that your instrument cluster battery is probably dead. See Davis Vantage Vue Batteries webpage.
It is also possible that your instrument cluster has simply croaked and needs to be repaired or replaced. Mine did this after about 10 years.
This is NOT a problem with the computer, the internet, or the PMI server - this problem is entirely the station setup. Rebooting the computer won't help... <grin!>
The instrument cluster is no longer communicating with the base station. In the Davis base station, look for the blinking circles at the top of the antenna image. (blue oval)
On the Cumulus screen on the computer, look for the "TX Battery Status: 1-ok ...". (green oval)
Also check the "last data read at:" (purple oval)
In the PMI website, "Manage station" screen, you'll find the same data. Look for "#LatestError", "#LatestErrorDate" and "#LatestErrorTime". (orange oval) These should match the contents of the email.
Also look for "#txbattery". It may say "1-low", indicating it was low at the time of the last successful communication.