Replaced a few nodes, Now, EISY is unresponsive

[Michaelv]

I replaced a few Insteon switches that had burned out but when I went to start linking them, the EISY wont run the link management tool.

I then tried controlling some switches from the administrative console and I get "Request Failed"

Then I got this:

Never seen this before.

 

What is going on?!?

here is what i'm running:

[paulbates]

Can you look under Tools>Diagnostics>PLM Info/Status? What does it say?