VVX D60 Base pairs with VVX 600, Handset does not

Hi guys.

Have searched around for another issue like mine however it is very specific and I have yet to find a solution. Technical details below but TL;dr first.

We have VVX 400s at our stores and VVX 600s at our head office. We recently received a D60 as UC-One is proving extremely unreliable on the BYOD environment we currently have.

After much fenangling, I have managed to get the D60 base station to register against my VVX 600 via PC port. The settings page reports

1. VVX D60 Profile: Enabled
2. Base Station: Paired
3. Handsets: 0
4. Intercom (Enabled)
5. Find Handsets
6. Map Lines

You would think the handset is simply not registered to the base, however, it is. I have tried multiple different iterations of connecting/pairing/registering/deregistering etc. It seems the handset will not register to the base station unless the base station is paired with the VVX 600. In fact, the base station seems to be completely unresponsive to either single presses or long presses to the "FIND" button.

• Dialing a number on the handset has it attempt to make a call for about 30 seconds before hanging up without ever having gone through.

• Another strange thing is trying to "Find handsets" has worked, Once, every other attempt after that and pressing the button on the VVX 600 does nothing.

• The handset also has the incorrect date/time, defaulting to 12:00am. The time counts up, but there appears to be no sync what-so-ever between the handset and the VVX 600.

• Tapping on the "Handsets: 0" button also sends it into an infinite loop of "Getting HS details"

• For troubleshooting purposes, I also setup the web portal and connected that way. I can connect to the base station this way, but doing so sends the portal into an infinite loop of "Getting handset details, please wait"
• Going into any setting on the handset that requires communication with the VVX 600 (such as multi line setup or call forwarding) also causes it to display "Please wait" for awhile (thirty seconds to a few minutes) before booting you back out to the previous menu

I believe everything should be setup correctly and don't see why the handset can't communicate with the VVX 600 when they can both (seemingly) communicate with the base station just fine.

VVX software version: 5.4.1.1.14510

VVX D60 upgrade status: Not Triggered (Tapping the button does nothing)

VVX D60 Handset Software Version: v0.7.41

Pkg Version: Loading...(indefinitely)

Any help that can be offered would be greatly appreciated.