Found a possible solution for main SkyQ dropping off network:
My SkyQ main box would drop off network (wired, TPLINK) and need a reboot to get back on.
Subsequently determined the drops were linked to the exact time of start up/coming out of sleep of my main PC which uses same router via wired ethernet.
Discovered that the 1gb network card in the PC I use was set to auto-negotiate.
Updated the network drivers and set speed/duplex in the card settings to 1Gb fixed.
Since then SkyQ is stable. Hope this may help others in troubleshooting.
Found a possible solution for main SkyQ dropping off network
