Netgear CM1150V vs Arris T25 – Check Which One Is Best & Why?

Arris SURFboard T25 & NETGEAR CM1150V share many similarities, but there are also important differences, such as quality, performance, features, design, and connectivity. If you want the best one between them, I Would recommend the Arris SURFboard T25 rather than the NETGEAR CM1150V.

Why Do I Recommend The Arris SURFboard T25?

  • The Arris T25 features a 2.5GbE Ethernet port for connecting to a multi-gig router WAN and fully utilizing internet plans above 1Gbps, while the Netgear CM1150V uses 1GbE Ethernet ports.
  • Arris T25 has a 2.5Gbps single-port LAN speed to deliver higher wired throughput to a compatible router without combining ports, whereas the Netgear CM1150V has a 1.0Gbps maximum per Ethernet port.
  • It comes with one dedicated multi-gig port to provide a direct high-bandwidth link without configuration steps, while the Netgear CM1150V supports link aggregation that requires a compatible router and manual setup.
  • The Arris T25 includes a dual-port layout with one 2.5GbE and one 1GbE port for flexible high-speed and standard device connections, while the Netgear CM1150V includes four 1GbE ports only.
  • Arris T25 supports a 2.5GbE WAN handoff to reduce the risk of LAN-side bottlenecks on high-tier cable plans, whereas the Netgear CM1150V supports only 1GbE per physical port.
  • It features a multi-gig Ethernet interface to match newer Wi-Fi 6 and Wi-Fi 7 routers with 2.5GbE WAN ports, while the Netgear CM1150V uses standard gigabit Ethernet interfaces.
  • The Arris T25 has a simplified high-speed connection path to ensure a single wired device or router can access speeds above 1Gbps without port bonding, whereas the Netgear CM1150V uses link aggregation to combine two 1GbE ports for higher total throughput.
  • Arris T25 includes a 2.5GbE RJ-45 port to provide higher headroom for future ISP speed upgrades beyond 1Gbps, while the Netgear CM1150V includes only 1GbE RJ-45 ports.

Maybe the NETGEAR CM1150V can make you comfortable because it’s a little bit cheaper than the Arris SURFboard T25. But you have to compromise all the above-mentioned features. Now the Decision is Yours. I hope it was helpful to choose the right one.

Side-by-Side Comparison

FeatureArris SURFboard T25NETGEAR CM1150V
Multi-Gig Ethernet1 × 2.5GbENone
1GbE Ethernet1 × 1GbE4 × 1GbE
Max LAN port rate (single port)2.5Gbps1.0Gbps
Max total LAN ports usable without switch24
Intended LAN topology2-port LAN4-port LAN
LAN-side multi-gig router compatibility2.5GbE WAN supported1GbE WAN
Multi-Gig Ethernet1 × 2.5GbENone
2.5GbE port count10
Dimensions (approx)6.1 x 4.1 x 1.5 inches5.6 x 4.3 x 1.6 inches
LED Indicators Count85
PriceCheck Arris SURFboard T25 PriceCheck NETGEAR CM1150V Price

What Common Both Can Do?

  • DOCSIS Standard: Both models use DOCSIS 3.1 technology, which supports gigabit-class cable internet plans. This ensures compatibility with modern cable ISP infrastructures and allows access to higher bandwidth tiers where available.
  • DOCSIS 3.0 Downstream Channels: Each modem supports 32 downstream channels under DOCSIS 3.0 mode. This allows stable performance in areas where ISPs still rely on DOCSIS 3.0 channel bonding.
  • DOCSIS 3.0 Upstream Channels: Both devices support 8 upstream channels in DOCSIS 3.0 mode. This helps maintain consistent upload performance for video calls, cloud backups, and file sharing.
  • OFDM Downstream Channel: Both include 1 OFDM downstream channel for DOCSIS 3.1 operation. This improves spectral efficiency and enables higher data throughput over cable networks.
  • OFDMA Upstream Channels: Each modem supports 2 OFDMA upstream channels. This allows improved upstream efficiency and better handling of multiple connected devices transmitting data simultaneously.
  • Backward Compatibility: Both are backward compatible with DOCSIS 3.0 networks. This ensures they can function even if a service area has not fully transitioned to DOCSIS 3.1.
  • Voice Ports: Both units include two RJ-11 telephone ports. This allows support for Xfinity Voice or similar cable-based phone services.
  • Voice Technology: Each modem uses PacketCable 2.0 for digital voice services. This ensures compatibility with modern cable telephony standards.
  • Coaxial Input: Both use a standard F-type coaxial connector. This makes installation straightforward with typical residential cable wiring.
  • Ethernet Interface: Each modem uses RJ-45 Ethernet connections for wired networking. This ensures compatibility with standard routers and wired network devices.
  • Wi-Fi Built-In: Neither device includes built-in Wi-Fi functionality. This means both require a separate router for wireless connectivity.
  • Integrated Router: Both models function strictly as cable modems and not as modem-router combos. This allows users to pair them with a router of their choice.
  • MoCA Support: Neither model includes integrated MoCA networking. This means coax-based internal networking would require separate MoCA adapters.
  • USB Port: Both devices do not include USB connectivity. Their primary networking interface is Ethernet.
  • IPv6 Support: Each modem supports IPv6 addressing. This ensures compatibility with modern internet protocols and future network expansion.
  • ISP Compatibility Type: Both are designed specifically for cable ISPs. They are not compatible with DSL, fiber ONT, or satellite internet connections.
  • Standalone Cable Modem: Both operate as standalone cable modems without additional wireless or routing features. This makes them suitable for users who prefer a separate router setup.
  • LED Status Indicators: Each unit includes front-panel LED indicators for power, downstream, upstream, and online status. This helps users quickly diagnose connection or signal issues.

Common Features

FeatureArris SURFboard T25NETGEAR CM1150V
DOCSIS StandardDOCSIS 3.1DOCSIS 3.1
DOCSIS 3.0 Downstream Channels3232
DOCSIS 3.0 Upstream Channels88
OFDM Downstream Channel11
OFDMA Upstream Channels22
Backward CompatibilityDOCSIS 3.0DOCSIS 3.0
Voice Ports2 × RJ-112 × RJ-11
Voice TechnologyPacketCable 2.0PacketCable 2.0
Coaxial Input1 × F-type1 × F-type
Ethernet InterfaceRJ-45RJ-45
Wi-Fi Built-InNoNo
Integrated RouterNoNo
MoCA SupportNoNo
USB PortNoNo
IPv6 SupportYesYes
ISP Compatibility TypeCable ISPCable ISP
Standalone Cable ModemYesYes
LED Status IndicatorsYesYes
Price Check Arris SURFboard T25 Price
Check NETGEAR CM1150V Price

FAQ

What type of internet connection do Arris T25 and Netgear CM1150V support?
Both Arris T25 and Netgear CM1150V are designed for cable internet service providers using DOCSIS technology. They are not compatible with DSL, fiber ONT, or satellite internet connections.

Do Arris T25 and Netgear CM1150V support DOCSIS 3.1?
Yes, both models support DOCSIS 3.1, which enables compatibility with gigabit and multi-gig cable internet plans where available. They are also backward compatible with DOCSIS 3.0 networks.

Can Arris T25 and Netgear CM1150V be used with Xfinity Voice or other cable phone services?
Both devices include two RJ-11 telephone ports and support PacketCable 2.0 technology. This allows them to work with compatible cable voice services offered by providers such as Xfinity.

Do Arris T25 and Netgear CM1150V include built-in Wi-Fi?
Neither modem has built-in Wi-Fi functionality. A separate wireless router is required to create a Wi-Fi network.

Are Arris T25 and Netgear CM1150V modem-router combo devices?
No, both are standalone cable modems without integrated routing features. Users must connect an external router for network management and wireless access.

How many Ethernet ports are available on Arris T25 and Netgear CM1150V?
Arris T25 includes two Ethernet ports, including one 2.5GbE port. Netgear CM1150V includes four 1GbE Ethernet ports.

Does either modem support multi-gig Ethernet speeds?
Arris T25 includes one 2.5GbE Ethernet port for multi-gig LAN connectivity. Netgear CM1150V does not include a multi-gig port and uses standard 1GbE connections.

Is link aggregation supported on both devices?
Netgear CM1150V supports link aggregation using two Gigabit Ethernet ports when paired with a compatible router. Arris T25 does not support link aggregation.

Are both modems compatible with IPv6 networks?
Yes, both Arris T25 and Netgear CM1150V support IPv6 addressing. This ensures compatibility with modern ISP network standards.

Do Arris T25 and Netgear CM1150V support MoCA networking?
Neither device includes built-in MoCA support. Users who require MoCA must use separate MoCA adapters.

What is the channel bonding capability of these modems?
Both modems support 32 downstream and 8 upstream channels under DOCSIS 3.0 operation. They also include OFDM and OFDMA channels for DOCSIS 3.1 performance.

Can these modems handle gigabit internet plans?
Yes, both models are capable of supporting gigabit-class cable internet plans when provisioned by a compatible ISP. Actual performance depends on service tier and network conditions.

Do Arris T25 and Netgear CM1150V have USB ports for storage or sharing?
No, neither modem includes USB ports. Their connectivity options are limited to coaxial input, Ethernet, and telephone ports.

Are these modems suitable for business environments?
Both devices can be used in small office or home office setups, particularly where cable internet with voice service is required. Network complexity may require pairing with an advanced router.

Do Arris T25 and Netgear CM1150V include LED indicators for status monitoring?
Yes, both models feature front-panel LED indicators that display power, downstream, upstream, and online connection status. These indicators help diagnose connectivity issues quickly.