The TP-Link ADSL2+ Modem Router (TD-8840T) is a 2-in-1 device that combines the functions of a DSL modem and 4-port 10/100 Ethernet router. It supports the latest ADSL2/2+ standards to provide higher performance (up to 24Mbps downstream) and longer reach from your Internet Service Provider’s (ISP) Digital Subscriber Line Access Multiplexer (DSLAM). You can also create a wired network to share your high-speed Internet connection, documents, photos, music, videos, and printers.
The TD-8840T includes a built-in QoS engine that helps prioritize Internet traffic to enable smooth Internet phone calls (VoIP) and lag-free online gaming. In addition, this device includes Dual Active Firewalls (Packet filtering and NAT) to help protect your network from potential attacks from across the Internet. Setting up the TD-8840T is simple since it automatically detects your DSL settings to quickly establish a connection to the Internet.
The TD-8840T also supports TR-069 which automatically updates the firmware and other settings when they become available from your ISP. Featuring high ADSL performance, various QoS policy, easy-to-use, TD-8840T is your best choice to access to the internet.
Access a high-speed DSL Internet connection
Up to 24Mbps downstream speed
Supports Annex M, which can double upstream data rates
Built-in switch connects four local PCs directly, and daisy-chain out to more hubs and switches as your network grows
QoS prioritization based on ToS, DSCP, service type or 802.1p
Triple Active Firewalls: SPI, NAT and Packet Filter
Supports DHCP, Universal Plug-and-Play (UPnP), and includes a user-friendly Setup Wizard which takes you through configuring your network, step by step
Administer and Upgrade the Router Remotely over the Internet
- by David_W @Jul 15, 2009
Full-rate ANSI T1.413 Issue 2
ITU-T G.992.1 (G.dmt)
ITU-T G.992.2 (G.lite)
ITU-T G.994.1 (G.hs)
ITU-T G.992.3 (G.dmt.bis)
Max 6 kilometers
Downstream: Up to 24Mbps
Upstream: Up to 3.5Mbps (With Annex M enabled)
UNI 3.1/4.0,ATM Adaptation Layer Type 5-AAL5
Multiprotocol encapsulation over ATM (RFC 1483)
UBR, CBR, VBR-rt, VBR-nrt
PPP over ATM (RFC 2364)
PPP over Ethernet (RFC 2516)
IEEE 802.1d transparent learning bridging
Classical IP and ARP over ATM (RFC 1577/2225), MER, RIP V1/V2
Static routing, IP, TCP, UDP, ARP
NAT, NAPT, DNS, DDNS, DHCP Server
UPnP, Virtual Server, DMZ
SIP, H323 ALG
Stateful Packet Inspection (SPI)
VPN Pass Through
IP Type of service(ToS)
HTTP, TELNET, Console
Administration and operation software (firmware) upgradable locally by WEB, TFTP, FTP, Console
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I got this modem because I didn't want a bunch of wires running a modem and a router, so this worked great. I use it with Teksavvy my ISP, and setup was simple and work. However, 4 months later I had intermittent issues, where a day or two my net was dropping a lot, running 1/16th the max speed etc, then ran perfectly fine for weeks. ISP said modem issues, TP-Link said ISP issue. Finally got really bad and have barely had internet the past 2 weeks so borrowed another modem, works fine, so modem issue. At this point TP-Link has stopped responding as soon as I mentioned warranty repair. Quick to say the ISP, and vanished once became a warranty situation.
This modem/router combo gets the job done and services 4 devices without a problem. The price was good and it's easy to use. However there are no instructions or help for using the advanced features and settings, although very few people will need or want to touch those. I personally don't have a good DSL connection to my ISP, but this modem seems to handle it well and doesn't drop connection very often. So far I can't really justify buying the much more expensive models or buying the combination of a single port modem and a separate router when this gets the job done in one low cost device.
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