About scheinbergh

This does NOT mean that DHCP IPs are static. You can reserve an IP by going to 10.0.0.1, log on and Reserve an IP. Usually, an IP won't change if it's connected as the lease time is 1 week. Reserving the IP assures that it does not change. In the DMZ setting you enter the LAN IP address of the device. The WAN IP, assigned by Xfinity can change, although mine has not changed in years. I use DynDNS to store my WAN IP address for applications that need to access my device remotely. ... View more

I have an alarm system on my network at Reserved address: 10.0.0.10. I have always used port forwarding to access this device from outside my LAN. With the changes introduced with Xfi, I could no longer set port forward logged into the Gateway (10.0.0.1). Gateway keeps directing me to xfinity.com/myxfi. To enable port forwarding, I first had to turn off Advanced Security. For some unknown reason, my alarm system never appears in the drop-down list of online devices eligible for port forwarding (although I can log into my alarm system from within the LAN). After hours chatting with Xfinity support, I gave up and placed my device (IP address) in the DMZ. Since my device ONLY accepts requests from one specific port, it works for me. This may be an option for you, as well. Good luck ... View more

HOORAY! I found a work-around. Instead of port forward, I put the IPv4 device 10.0.0.10 in DMZ. It should ignore any messages not sent through its one open port.  I tested access from outside the LAN and it worked. No thanks to tech support, however. ... View more

I am also trying to forward port 12601 to IPv4 10.0.0.10. The device is an alarm system with Reserved IP.  I can ping the device and log into it from within the LAN. Device shows as "not connected" even when I am pinging or retrieving data from it on LAN. I disabled Advanced Security so I can get to the Port Forward menu. My device does not appear in the Port-Forward drop-down list. Occasionally, the device shows up as Connected, it is still missing from the drop-down list for port forward. I spent hours on CHAT with Xfinity "experts" and no-one can help. This port was forwarded 2 years ago and worked correctly until I installed xfi pods. Now I cannot configure Port-Forwarding logged into 10.0.0.1 - when I try it send me to "myxfi". The device is connected to ethernet port on Gateway NOT Wi-Fi.  Help. Any ideas? ... View more

Problem with SMTP server. Pinging to smtp.comcast.net fails with IPv6 address [2001:558:fe21:2a::5]. Pinging to smtp.comcast.net succeeds with IPv6 address [2001:558:fe16:1b::16]. This means that it's a toss-up if you reach the GOOD server  [2001:558:fe16:1b::16] or the BAD server [2001:558:fe21:2a::5].  I hope Comcast will address this soon. Hal ... View more