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Netgear Nighthawk C7800 Low Speeds on Lan and Wifi
Hi Community, I have been getting slow speeds on my C7800 from the get go. I just moved thinking that my previous place was the issue with my slow speeds but I am getting the same issues at my ne...
ElderAgent wrote:Thanks for the reply guys, I have disabled 20/40 coexisting and I have attached the the cable connection as requested in pdf format.
There is no one magic answer. When you shut off the 20/40 coexistence, run a Wi-Fi throughput test on several of your wireless devices and see if it helps the situation.
Your downstream power levels are significantly high. Netgear says they should be between -7 and +7 dBmV. The power level situation should be corrected by your service provider. Make sure the ISP checks it all the way to your gateway, not just to where the wiring enters your house. Power levels being high can be just as much of a problem as their being low.
See here for Netgear reference on power levels: https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
So with the downstream power levels, I remember when the ISP technician came over to setup the internet, he mentioned that the location of the model is close to the junction box so he added an attachment to the end of my modem where the coaxial cable connects. He mentioned the attachment will filter/reduce the power level so things run correctly. Would that be the cause of the high power levels, should I try a longer coax cable to simulate extra distance from the junction box? I attached an image of what the filter attachment looks like.
ElderAgent wrote:So with the downstream power levels, I remember when the ISP technician came over to setup the internet, he mentioned that the location of the model is close to the junction box so he added an attachment to the end of my modem where the coaxial cable connects. He mentioned the attachment will filter/reduce the power level so things run correctly. Would that be the cause of the high power levels, should I try a longer coax cable to simulate extra distance from the junction box? I attached an image of what the filter attachment looks like.
The power levels are still too high. They need to be reduced further to be within specification. Does this filter have a brand name or part number on it? You may need to have the ISP technician back to install a different filter.