To connect to the LAN/WAN I have a brand-new 5 port Ethernet switch under my desk which connects to a brand-new TP-link WIFI extender (the router is in another room).
This all works fine except when first powering up the Flex.
The desktop PC, a laptop and the OM2000a+ (which are also plugged in to the same ether switch) do get an IP address from the router first time.
However, the Flex 6500 (v2) does not. It always needs another power-cycle. As there are no diagnostics on the OLED display I have no way to know what is going on, just tat the v2 radio discovery does not find the radio.
The switch and the WIFI extender are left on 24/7 so an initialization problem is unlikely. In any case the PC, laptop and OM2000 do not demonstrate this symptom.
The work-around is to have to power cycle the Flex twice (without changing anything else) and hey presto the Flex now gets an IP.