It’s irrelevant if the OP is using a wired of WiFi connection. Flashing LEDs usually mean a drop of connection on the circuit. What the hub is trying to do is reconnect and it’s not succeeding.
Go into your hub on 192.168.0.1 and post your up/downstream stats and network log.
Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2