Update Clients known to NOT work with DynDNS.com

Belkin

• F5D8233-4 - Wireless N Router

D-Link

• DCS-3220 - Internet Camera with 2-Way Audio
• DI-514 - Wireless Cable/DSL Router
• DI-604 - Ethernet Broadband Router
• DIR-635 - RangeBooster N 650 Router
• DIR-655 - Firmware 1.21 and 2.02 (1.35NA works)
• DSL-2640B - firmware version GE_1.07
• WBR-2310 - RangeBooster G Router

Draytek

• Vigor3300v - Multi-WAN Security Router

Linksys

• BEFw11S4v4 - Wireless-B Broadband Router
• WRT300N - Wireless-N Broadband Router with 4 port Switch
• WRT54GS - Wireless G Broadband Router
• WRT55Ag - Wireless A+G Broadband Router
• WVC200 - Wireless PTZ Internet Camera with Audio
• E1000 - Updates with LAN IP (courtsy of the1soulhunter)
• E2000 - Wireless router, works but forced update every 90 minute
• E3000 (courtesy of niska)
• E4200 (based on multiple forum posts)
• E4300 (before firmware 1.0.02-build 13)

NETGEAR

• RP614 - 4 Port Cable/DSL Router with 10/100 Mbps Switch
  Note that the RP614v2 with firmware 5.20 is reported to work
• WGR614 - Wireless-G Cable/DSL Router
• WGT634U - Wireless Storage Network Router

TP-Link

• MR3420 - abusive updates

Zhone

• 6218-I2 (unconfirmed)

Zyxel

• P-2601HN-F1 (updates upon change, but does not update at a fixed interval)

Unknown/Generic

• DVR D7704HT (causes hostname to be suspended for abusive updates)

I can confirm the RP614V2 router DOES work, but you must apply the latest firmware update from Netgear's support site (I think it's level 5.20)

DIR-655 - Firmware 1.35NA

does not work since Nov 17, 2011. Before, it works just fine.