[App_rpt-users] APRS not connecting

I've noticed on a couple of my nodes that APRS was not able to connect. Error in CLI and messages show: WARNING[647] app_gps.c: server second.aprs.net cannot be found!! WARNING[648] app_gps.c: Attempt to send APRS data with no connection open!! I've had this running for quite some time without problems and no changes to config. I can ping second.aprs.net (and rotate.aprs.net) and get a reply. Also changed config to rotate.aprs.net with no change. Anyone else seeing this. It errors out all day long and filling up my logs. Sincerely, boB - W5EVH