Greetings M3 - your question is a good one. In general the firmware updates are automatically pushed out to modems with no action required on your part. It is not clear from your post if you have a Spectrum provided modem or third party modem that you purchased.
Kindly let us know what modem you have and current firmware version .
I have the Spectrum Arris TM1602A MTA modem and Sagemcom [email protected] router. Not sure how I can check the firmware version of my modem since every time I get in I can only see the router instead of the modem.
ARRIS DOCSIS 3.0 / PacketCable 2.0 Touchstone Telephony Modem
VENDOR: ARRIS Group, Inc.
Firmware Name:TS0901103J8TW1_010918_1602.TM_PC20_TWFirmware Build Time:Tue Jan 9 16:21:59 EST 2018
Hope this help!
Is the SNR and correcteds/uncorrectables numbers normal?
Thanks for the update M3. The SNR would be considered ok/in spec. Uncorrectables however are not.
Would encourage you to schedule a service call with tech support . Ask them to resolve issue with uncorrectables, verify there are no T3 errors or errors of any kind in the modem log.
Please let us know how it goes after your service visit.
I agree with @Lake802 that the individual channel signal levels are OK, but the uncorrectable errors most certainly are not. The eMTA (phone+internet) modem was provided to you by Spectrum, and they are totally responsible for its functionality. There is no reason that you need to know the firmware version, since you have neither control over nor access to the firmware. If you have an internet service problem you just ask/tell Spectrum to repair or replace the failed modem device.