To check if your VX230v modem/router has Symmetric NAT, you can look into the router's settings through its web interface. Typically, you'll find NAT settings under the "Firewall" or "Advanced"...

It is like a frustrating situation with your CPE510 setup. The constant disconnecting could be due to a few factors, like signal interference or configuration issues. Have you tried resetting both...

I've noticed the same issue with my Archer VR600 V3. A recent firmware update might have caused the Speedtest feature to disappear. Has anyone found a workaround or garage door repair solution.