Some things to try: - Log into the routers web page at 192.168.0.1.
Use IE, Opera or FF to manage the router.Turn off ALL
QoS or Disable Traffic Shaping (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual or under Setup/PARENTAL CONTROL/Set to>None: Static IP or Obtain Automatically From ISP.
Enable Use Unicasting (compatibility for some ISP DHCP Servers) under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices ON the router. Setup/Networking. This ensures each devices gets its own IP address when turned on and connected, eliminates IP address conflicts and helps in troubleshooting.
Ensure devices are set to auto obtain an IP address.
If IPv6 is an option on the router, select Local Connection Only or Disable IPv6 options under Setup/IPv6.
Set Firewall settings to Endpoint Independent for TCP and UDP under Advanced/Firewall.
Enable uPnP and Multi-cast Streaming under Advanced/Networking. Disable uPnP for testing Port Forwarding rules. Disable IPv6 Multi-cast Streaming if IPv6 is not being used.
Turn off WISH, and WPS under Advanced.
Set current Time Zone, Date and Time. Use an NTP server feature. Tools/Time.
You might try using ISP DNS intially while you attempt to get Teamspeak going. Then if you can get it going, then switch to DDNS.
You can try this as well"
Finding Faster DNS Addresses using Name BenchIf the logs are getting sent manually, then i would check the scheduling to make sure the settings are correct and proper. Do a test schedule and set up something to see if anything gets sent at that time. If not, there could be an issue with FW.
FYI:
Arris Cable Modems and External Routers