The cable signal level shows that the upstream values are not in accepted level so this needs to be checked again after reconfiguring the modem so please do hard reset on the modem then check again the signal levels.
The SNR should be above 33 on all of them. The downstream power should always be between -15 and +15. The closer to 0 the better connection. Finally, your upstream power should always be between +45 and +51
On all of those values you should not have more than 3 decibels (or dB) between the lowest and the highest
By having the values in less than that, your device will have interrupted connection, slow or no connection at all. In this case you need to contact your internet service provider to re provision the modem and then monitor your connection for 24hrs.