I'm using an ethernet connection on both HR-24/500 DVRs. They are both connected to my home network via a gig connection (albeit, connected at 100Mbps, as that is what they support). MRV has been FLAWLESS up until the update this morning when they were both updated to 0x457. I use DHCP, being served up from my ASA5505. I've rebooted both, and neither can see each other. They're both on the same subnet, and they both have internet connectivity (they can both access youtube, and internet connectivity tests are successful). They are also both authorized for WHDVR. I have tried rebooting them both, to no avail. Has anyone else seen this since updating to 0x457? Does anyone have any ideas on this?