Slow internet speed issue with NETGEAR N600

[Sukhjeevan]

Hi All

I have NETGEAR N600 Cable Modem Router (C3700). My internet speed is only around 40 Mbps even I do have 200 Mbps xfnility internet plan. xfinity support asked me to contact Wi-Fi device manufacture company. Any suggestion what can I do to get expected speed.

https://www.amazon.com/gp/product/B00IF0JAYE

Thank you

[antinode]

> [...] My internet speed is only around 40 Mbps [...]

   Measured how?  Using what for a client device, connected how?  Wired?
Wireless, 5GHz? Wireless, 2.4GHz?

> [...] what can I do to get expected speed.

   What is your "expected speed"?

   Why blame the C3700 rather than your (unspecified) client device?
Does your (unspecified) client device get higher speeds in some other
environment?

[Sukhjeevan]

I'm using HP laptop Elitebook and connected internet via Wi-Fi connection.

Tested with Network Band at 2.4 GHz

• Disconnect from office VPN
  • xfinity speed test: ~50 Mbps
  • speedtest.net speed test: ~10 Mbps
• Connect from office VPN
  • xfinity speed test: 0 Mbps
  • speedtest.net speed test: ~10 Mbps

Tested with Network Band at 5 GHz

• Disconnect from office VPN
  • xfinity speed test: ~120 Mbps
  • speedtest.net speed test: ~20 Mbps
• Connect from office VPN
  • xfinity speed test: ~0 Mbps
  • speedtest.net speed test: ~20 Mbps

Speed is little better now with 5 GHz but only while disconnected from office VPN. I cannot work while disconnected from office VPN so not much helpful.

In office I get enough speed and don't see any disturbance while attending online meetings.

Is there any other setting I can change in modem router to get higher speed? If not any suggestion for good modem router.

Thank you