HITRON CGNM-2250

cgnm-2250

The HiTron CGNM-2250 is a standard DOCSIS 3.0 cable internet access point unit. MSRP is $199.

The CGNM-2250 delivers speeds of up to 960 Mbps with twenty-four bonded downstream channels over its DOCSIS interface. The integrated four port 1000BASE-T Ethernet switch and Wi-Fi 3×3 802.11n+802.11ac dual band MIMO Access Point enable fast and easy home entertainment networking.

The CGNM-2250 supports full IPv4 routing features, as well as, full support for IPv6 routing and firewall. The CGNM-2250 supports both DSLite as well as 6RD for different IPv6 deployment and transition strategies.

The CGNM-2250 supports pre-configured and pre-enabled Wi-Fi security via Wi-Fi Protected Setup (WPS), allowing the end-user to rapidly set up a secure wireless network without manual configuration.

FEATURES

  • DOCSIS 3.0 compliant and DOCSIS 3.0 certified
  • Two USB 2.0 host, supporting Network Attached Storage (NAS) functionality
  • Wi-Fi Access Point with 3T3R 802.11n+802.11ac dual band MIMO internal antennas
  • 20, 40 and 80 MHz channel support.
  • Four 1000BASE-T Ethernet ports
  • Supports 32 SSIDs (16 SSIDs per radio)
  • Individual configuration for each SSID (security, bridging, routing, firewall and Wi-Fi parameters)
  • Integrated DLNA Media Server with support for video, audio and image serving
  • Extensive operator control via configuration file and SNMP
  • Well-defined LEDs clearly display device and network status
  • TR-69 and HNAP for easy setup and remote management
  • Enhanced management and stability for low total cost of ownership

The CGNM-2250 works well with the 80 MHz channels selected. The wider 80 MHz channels in the 5 GHz band allow for higher speeds when the hardware has support for it.

Testing it with modern mobile phones showed excellent performance at ac960 speeds. Photographs are uploaded in a second or two.

The IP Passthrough is available for those who want to use a different WiFi setup. The HiTron CGNM-2250 can then also be plugged into an existing LAN infrastructure. The IP passthrough delegates NAT to another device,.

hitron channel support

SHAW.CA

Shaw disables the USB so the CGNM-2250 cannot be used as a USB hard disk server. Shaw prefers uses use a Ethernet based NAS at higher cost.

CHANNELSTANDARD WIDTH
3620 MHz
4020 MHz
4420 MHz
4820 MHz
14920 MHz
15320 MHz
15940 MHz
16120 Mhz

Laptops with the RTL8821AE connected at ac433 which is the speed used by the RealTek hardware. Laptops with the Intel 9260 achieved ac960 speeds. Real throughput with 2T2R hardware was disappointingly slow with transfer speeds of 3-4 MB/s. The improper channel allocation is key to the problems.

Wired connections were substantially faster with transfer speeds of 100 MB/s. Looking into the problem shows the channel assignment is incorrect.

The list of clients is also improperly shown. The printer is shown incorrectly. The iPad has a network tool that properly enumerates devices.

Shaw Cable uses this modem for Internet services up to 100 megabit download. Shaw disables the USB so sharing a large capacity USB stick is not possible. By default Shaw also disables the WPS so if a user desires to use it, it must be enable for both 2.4 Ghz and 5 GHz channels. It is not known if the CGNM-2250 or Shaw is limiting the number or channels at 5 GHz for users.

The known 80 MHz 5 GHz channels are 42, 58, 106, 122, 138, 155, 171. The CGNM-2250 supports none of the standard channels. The table was compiled from the official 5 Ghz channel allocations.

Testing even the most advanced WiFi cards with the CGNM-2250 show a poor performance characteristic. 802.11ac is marketed as exceeding 1 gigabit speeds but the gimicked box that Shaw provides is so far away from the standards its unbelievable.

Small wonder coffee shop wireless is so slow as well. Downloading a web page is slower than molasses.

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