You'd mentioned you were trying to
update PhD9 and the App Manager couldn't connect, but it wan't clear that you were trying to
upgrade to Phd11. You're correct that there aren't any proxy settings for the App Manager, but I can't say for certain if it's using a standard access to IE (which is configured to use the proxy) or is trying to establish a direct connection on its own.
One thing you can check is to open Window Task Manager, Click on the Performance tab and then at the bottom, click on Open Resource Monitor. Once that's open, expand the Network panel and launch the App Manager. You should see activity like this:
If you're only seeing activity in the Send column, it might be because it can't access the outside world through the proxy. Is there any way you can bypass that temporarily, or maybe use your phone as a mobile hotspot?
When I use a paid VPN, the App Manager takes longer to populate but it still works correctly:
YouTube/optodata
DS365 | Win11 Pro | Ryzen 9 3950X | RTX 4070 Ti | 32GB RAM | 10TB SSDs | 5K+4K HDR monitors
Canon Vixia GX10 (4K 60p) | HF G30 (HD 60p) | Yi Action+ 4K | 360Fly 4K 360°