I finally succeeded in updating the time server, for a sufficiently small value of success. If I pasted the IP address in rather than typing the value in directly, and quickly pressed save (2 seconds...

Model : Hardware Version : Firmware Version : ISP : Just got a new TL-R470T+ rev 6. Every time I attempt to set the primary or secondary NTP server it resets to 0.0.0.0, often before I can completely...