The dashboard is searching in MMDVM_Bridge log file with current data
grep -a 'DMR, Logged\|DMR, Closing DMR\|DMR, Opening DMR\|DMR, Connection' /var/log/mmdvm/MMDVM_Bridge-2020-12-11.log
and if the result is empty the dashboard looking to MMDVM_Bridge log file with yesterday
grep -a 'DMR, Logged\|DMR, Closing DMR\|DMR, Opening DMR\|DMR, Connection' /var/log/mmdvm/MMDVM_Bridge-2020-12-10.log
As so result this command is used to create the status of DMR Server.
If your system works 24H and you have connected to DMR Serve for more than 2 days without changing DMR server at current the dashboard can not has the possibility get info about the connected DMR server
if see that info about the status DMR Server is empty try to check log file with the above command where file name MMDVM_Bridge log file must be with yesterday