c1700 nighthawk app says firmware is outdated

Unfortunately your with Spectrum and there one of or thee worst in user owned modem support. Most of the time they will not update user owned modem FW. ISPs have this choice as well. 

First things to check though:

Please post a copy and paste of the modems connection status page.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly. They are responsible for this much. 

Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 

https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://highspeed.tips/docsis-events/

If after all this, the modem doesn't work well and the ISP will not push any FW to the modem, and if there is no other ISP service company available in your area, I would go with a ISP provided modem, ask for a modem only unit if possible, then let them maintain it, then connect a external wifi router system to the modem. You'll have control over the wifi router system and can update it as you need to.

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Beeemer521 wrote:

I recently bought a second hand c1700v to use with Spectrum. I tried connecting with the app and it tells me the firmware is outdated  I contacted my isp and they told me that they couldnt do anything about it. plus my internet speeds are horrible.. any suggestions...

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