This is the usual address of the web-portal of the cable-modem. All the statuses should be "Done" or "Operational". The "Signal" page also seems to show what quality signal you're getting. Not that this will really be any help to you apart from telling you either the modem has a problem or the signal quality is rubbish (my SNR is 40dB and I know this is getting me a good connection, but I don't know what is considered a bad SNR). TCL are probably the only ones who can sort those sorts of problems for you.