Solid Amber upstream light

[harshildonga]

I am having solid amber upstream light in my modem Netgear C6300 and i believe because of that i am getting rediculosly slow speed for my internet. I am attaching my log detail here. any help would be appriciated. Also i am using Comcast as my ISP and called them many times but they are saying its modem problem.

[FURRYe38]

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. 
Be sure to power OFF the modem for 1 minute them back ON.

Has a factory reset been performed on the modem? 

[harshildonga]

Yes, I have performed factory reset but its not working either 

[FURRYe38]

IF all the other suggestions have been checked, you could try a different modem to see if the problem remains for goes away. If it goes away with a new modem, then the C series modem could be marked as the culprit, if the problem continues with a new modem then there is a ISP service line issue that the ISP needs to resolve. 

[plemans]

Your upstream power is way to high. It'd definitely cause issues. 

Any splitters, amplifiers, or signal attenuators inline? If so, remove them. check the line all the way back to the box. They've been known to stick signal attenuators in the box. 

[Spilette]

Same for me, I did factory reset, shut this off..

still nothing..signal look like this 

[FURRYe38]

Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
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. 
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Mod...

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@Spilette wrote:

Same for me, I did factory reset, shut this off..

still nothing..signal look like this 

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