You need the systemd log as root: journalctl -f -u NetworkManager Sincerely Andy > Am 17.10.2017 um 23:07 schrieb FHDATA <fhdata at unm.edu>: > > > hello, > > centos 7 > > > If the system (wired static IP#) is powered down > and stayed powered down for some period: let > say 48 hours or so .... when it is rebooted again it > can not establish a network connectivity > for some time: 7 to 15 minutes and then > everything network wise is fine... > > I am unable to spot any errors in various system logs. > > If you think this is on the OS/system side .... > where do you think I should look to hunt down > some parameter or settings that maybe causing this? > > > > thank you, > F- > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos