I installed wallet and run it on testnet
Running symbol-desktop-wallet\Symbol Wallet.exe? .... Which instructions you followed?
I installed this exe file from here, now I see it is 14.0 and you are trying 14.1 (:
https://github.com/nemgrouplimited/symbol-desktop-wallet/releases/tag/v0.14.0Literarily just run it, and after that created new wallet on testnet. It seems working, balance is 0 and I don't know if I should check something else...
Did you got any notifications from Window's security softwares?
In Windows10 there appeared some note from Microsoft Defender Smartscreen. I think it came with 14.0 and also with 14.1. The note was passed and the installation continued.
Edit: tried now again with 14.1. And reduced some security SWs from PC before installation and running.
After 30 minutes the Wallet-window remained totally empty, not even a note that "You are missing this ..." or "Cannot connect to ...".
Didn't get any message (Win 10), I'm using McAfee, so it Win Defender Firewall is not active on my PC, maybe that makes difference.