No Receive, Transmit OK
Posted: Mon Apr 03, 2023 8:20 pm
I experienced an unusual problem with Windows 11 and Thetis (but it could happen to any software running with your SDR.) I had my normal QSOs in the morning with Thetis and my 7000DLE MKII when I powered down Thetis and shut off the radio. I left my computer and Thetis up and running. I came back into the shack in the afternoon, turned on the radio and powered up Thetis. Thetis would connect but with no RX audio and no panadapter. Importing a good database did not restore operation. Transmitting was fine, both on CW and SSB. Just no receive.
Some email chats with another user led me to check to see if the Windows 11 Firewall was blocking packets from the radio. Sure enough, when I turned off the Firewall the radio came back to life! What happened!?! I discovered that my network interface had changed from Private to Public sometime during the day. When I changed the adapter back to private the radio worked fine.
It is not obvious how to change the network connection Properties from Public to Private. You need to right click on the network icon in the lower right. Select Network and Internet Settings, then check the Properties. If it has changed to Public, click on Properties to make it Private.
During install of Thetis rules are setup for your network connection to allow the RX audio packets to pass through the Firewall. If you are behind a router and on your private shack local area network you should be safe to leave it Private. Public is intended for connecting to a public WiFi access point. I think Microsoft feels that you would be better served to have it changed to Public all the time for better protection, I wish they would alert me to these changes instead of just doing them. Or how about not changing it at all.
Some email chats with another user led me to check to see if the Windows 11 Firewall was blocking packets from the radio. Sure enough, when I turned off the Firewall the radio came back to life! What happened!?! I discovered that my network interface had changed from Private to Public sometime during the day. When I changed the adapter back to private the radio worked fine.
It is not obvious how to change the network connection Properties from Public to Private. You need to right click on the network icon in the lower right. Select Network and Internet Settings, then check the Properties. If it has changed to Public, click on Properties to make it Private.
During install of Thetis rules are setup for your network connection to allow the RX audio packets to pass through the Firewall. If you are behind a router and on your private shack local area network you should be safe to leave it Private. Public is intended for connecting to a public WiFi access point. I think Microsoft feels that you would be better served to have it changed to Public all the time for better protection, I wish they would alert me to these changes instead of just doing them. Or how about not changing it at all.