A 'bonded channel' is where the modem combines two or more channels together, for increased bandwidth.
The first light <Power> should be green, indicating power is on.
The second <Receive> light can be green or blue. When it is steady green, no bonding is occurring, (less bandwidth). A steady blue light indicates that the modem is using more than one channel for downloading. That is too say, it is bonding(higher bandwidth). That is the preference.... (If green or blue, and flashing, modem is still setting up....).
The third light <Send> can be green or blue. When it is steady green, no bonding is occurring, (less bandwidth). A steady blue light indicates that the modem is using more than one channel for uploading. That is too say, it is bonding, (higher bandwidth). That is the preference.... (If green or blue, and flashing, modem is still setting up....).
The fourth light <Online> is green, only....
If green and flashing, it is scanning for a connection.....
If green and not flashing, it is finished scanning....
The fifth light is the WiFI indicator of network traffic. (It also is used for WPS pairing, which I doubt you will use. Just stick with the WiFi indicator function...). It should be green, normally..., or non-WPS....
If #2 is blue, and 3# is green, normally...., I suspect that there is too much loss in your in-house system of wiring, and splitters. If that is the case, try putting a 8-12dB 'tap', in series with the whole house. That way, the loss is minimized for your modem to 'send' high bandwidth stuff upstream to the cable guys.... Be sure that the modem is connected to the 'tap' port, the house to the 'out' port, the cable company to the 'in' port of the tap block. I pasted a couple of examples of taps, at the bottom of this, to show the port labels. The tap loss to the rest of the house, is minimal to how well everything else works. I get a +15dB signal from the cable company. But, too many splits, left my modem in low speed upload mode. By-passing the splitters of the house, by adding the tap as only loss to modem uploading, my blue light always stays on. I also added an UPS, to cover power failures, and glitches. That was a well spent $50 special!