Thanks! Actually I ended up with exactly the same settings.

@Joseph-TP The actual issue is that at some point router turns into an infinite loop of service restarts (similar to the below). These restarts happen ~every 30 seconds. The impact is very visible...

The default NTP settings of "time-dot-nist-dot-gov" &"time-nw-dot-nist-dot-gov" cause performance problem (I use "-dot-" instead of "." in URL, otherwise cannot post content). Due to inaccessible...