Network check

[Jonathan W]

Today I tried to connect with a JK friend in Australia for a session, but could not (we communicated by WhatsApp!). Eventually I found that JK could not verify my network connection, even though I was using an Ethernet cable as instructed (audio and video set up registered as good)  When I tried to access the JK support desk - as suggested - it was unavailable.  This is still the case.  Can anyone help?  

Thanks,
Jonathan (UK)