Hi,
It seems to be a DNS issue. You say you can ping the IP and also the FQDN from your laptop? Since you said you power up other hosts, could it be an IP conflict? Another server/device using the same IP address?
Is the laptop the only device you can try the connection? Any other server that you could try to connect to the vCenter?
If you only try to connect to the vCenter using IP does it work?
Luciano Patrão
VCP-DCV, VCAP-DCV Design 2023, VCP-Cloud 2023
vExpert vSAN, NSX, Cloud Provider, Veeam Vanguard
Solutions Architect - Tech Lead for VMware / Virtual Backups
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Blog: https://www.provirtualzone.com | Twitter: @Luciano_PT