Why XS1930 shows "server certificate has been failed" when I update access Layer 3 license status?
Zyxel_Melen
Posts: 3,085 
Zyxel Employee
Zyxel Employee
in Other Topics
There are two possible reasons for this issue:
- Your switch system time is not up to date. Please correct the system time or synchronize with the time server.
- Your firewall might block ports 80(HTTP)/443(HTTPS). Please allows these ports on your firewall.
Zyxel Melen
0
Categories
- All Categories
- 417 Beta Program
- 2.5K Nebula
- 160 Nebula Ideas
- 108 Nebula Status and Incidents
- 5.9K Security
- 331 USG FLEX H Series
- 286 Security Ideas
- 1.5K Switch
- 78 Switch Ideas
- 1.2K Wireless
- 42 Wireless Ideas
- 6.6K Consumer Product
- 259 Service & License
- 402 News and Release
- 86 Security Advisories
- 31 Education Center
- 10 [Campaign] Zyxel Network Detective
- 3.8K FAQ
- 34 Documents
- 34 Nebula Monthly Express
- 85 About Community
- 80 Security Highlight