Hi
I am having a major issue with the compute engine. I am suddenly (since about two days ago) unable to RDP into any instance. Attempting to RDP gives me this error:

I get 'connection refused' when using an external RDP client.
When trying to reset an instance password, I get this error:

I have tried:
- Temporarily opening up the google cloud firewall completely to all sources for all instances (temporarily!)
- Creating a new instance, using a copy of the previous boot disk
- Creating a completely new server 2016 instance
- Tried SSH on a linux instance
I can see the console, but not interact with it.
The routing looks okay. I can access http and https services on two of the instances.
The only other thing that's relevant is that we have a site-to-site VPN over which the servers are joined to our domain. This isn't currently working but I'm unsure if that's because of whatever issue we're having with google cloud compute. If I could access the machines from the internet but they couldn't connect outwards, I would understand this (DNS failure) but given that I can http to it but not RDP to it, I'm not sure it's relevant.
I'm really stuck here and would appreciate any assistance.
Thanks
Ewan
Head office: 0141 375 3853
PV Solar UK Ltd
131 Cambuslang Road
Cambuslang Investment Park
Glasgow, G32 8NB
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