teejay

I also noticed these messages in the system logs: “HTTP request failed, code: 1,” “time went backwards,” and “conntrack byte count went backwards.” I understand they may be unrelated to the 5 GHz WiFi issue, but could you tell me what they mean and whether they indicate a problem with the router? I’ve attached the logs I have now. The next time the 5 GHz network disappears, I’ll download the logs right away and send them to you so you can check whether they help identify the cause.

Hi, I have Spectrum internet connected to a Netduma R3. Spectrum checked the connection and told me the problem appears to be the router, not the Spectrum modem.
After the router has been working for several days, the 5 GHz Wi-Fi network randomly disappears. The 2.4 GHz network remains available. This keeps happening every few days.
I’ve also had the internet stop working through the R3. Restarting/resetting the R3 brought the internet back. I installed the latest firmware that was released a few days ago, and I’ve checked everything and made sure it’s up to date, but I’m still having the same problem.

Same here and I am not on the early release firmware

What is the model of the modem/router the R3 is connected to and how have you set that to ensure all traffic flows to the R3? E.g R3 in its DMZ, modem/bridge mode Spectrum D3.1 eMTA DOCSIS 3.1 Advanced Voice Modem And when my PC is connected directly to the modem i get over 1GIG so not the modem. Are ALL devices connected to the R3? Yes but i have also tried just having my PC connected Have you entered those speeds into the router? Yes still doesnt reach it My PC will reach 650 through Duma R3 Router and the Duma speed test its self only reaches 400 How have you setup Congestion Control? I made my device top priority i also went into advanced and turned off QOS and everything as well How have you setup SmartBOOST? Same as above answer Where are you testing the speeds? Ookla Speed test 

The router limits me to 600 and something. IF i direct connect to my modem i get over 1 gig to the device. I even turned of QOS and tried