than strongly suggests the connection is ok - try a full reset - hold the button a good 30 sec - do not turn off after it resets just allow it to sort itself out if that does not help
log into hub3 - 192.168.0.1 [or 192.168.100.1 if in modem mode] - DON'T SIGN IN, click - click router status [centre of screen] - and post the downstream and upstream figures - to see those press on the grey buttons/boxes labelled - upstream - downstream
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Tony.
Sacked VIP