I've been using pfSense for the past few years. I usually have a couple of systems running. (Here is some background: https://www.dslreports.com/forum/r30890286-Actiontec-TX200H-Bridged-Port-1-pfSense-Native-IPv6.)
My main system is currently running the most recent release, which is 2.4.3-RELEASE-p1. This system has been working perfectly.
My other system runs the most recent development snapshot, which is currently 2.4.4-DEVELOPMENT. Starting in April, this system stopped working properly. The ipv6 gateway will not connect. The only indication of a problem in the log is a couple of messages in the DHCP log:
Apr 26 22:33:19 dhcp6c 10972 Sending Solicit
Apr 26 22:33:19 dhcp6c 10972 transmit failed: Input/output error
When dhcp6c tries to send a dhcp solicit to the Telus edge router, it fails. There is no recovery from this error. I've reported it to the pfSense community and no one else is experiencing it. I've tried reinstalling pfsense and it made no difference. I even tried using a different NIC, but that also made no difference. (I'm running both of my pfsense systems on a Windows 2012R2 Hyper-V server.)
I would appreciate if anyone who is running the pfSense development snapshot would let me know if you are experiencing this problem.
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