Hello @jxis, May I double-check whether your issue is the settings will not save after you changed the Timezone? If not, could you provide a screenshot to elaborate on the issue? Does this issue...

Hello @QuietAdmin, Please refer to the detailed release notes in this post. And it is no support DNS over TLS or HTTPS options related characters here.

Hello @MugiwaraWorker, How many devices are managed by your controller in total? Are these ER605s managed by the same controller? Have you tried upgrading controller firmware to the latest V5.9?

Hello @Wynal, May I know the WAN IP address of ER605? Is it a public IP? Have you tested these VPNs on different VPN Clients? Have you tried turning off the firewall and anti-virus software on the...

Hello @SausageJuggler， May I know what exactly the online services are? Could you check if the VPN tunnel establishes successfully? Is the VPN working properly except for the online services...

Hello @BennyCS， Did you use ER605 in Standalone mode? Could you please share a screenshot of Time Settings in the System Tools Section? If you refresh the page of ER605 web interface, can it fix?...