Yes I am also facing same issue when I am trying to connect my ledger hardware wallet with MEW it gives me the same Error (Make sure your XDC Network App is opened)
But no worries with My Crypto wallet mycrypto.com wallet it works completely fine with the XDC Network path
1) Go to their website mycrypto.com select ledger
2) Then you will have to select the Network please select XDC Network
3) Make sure your ledger live app is open with XDC app installed
4) After that click on connect ledger
5) Please make sure you have selected XDC Network path
6) You will find your address on the top of the list
7) And it will be the same address of the MEW wallet
And was able to broadcast the transaction also
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Yes I am also facing same issue when I am trying to connect my ledger hardware wallet with MEW it gives me the same Error (Make sure your XDC Network App is opened)
But no worries with My Crypto wallet mycrypto.com wallet it works completely fine with the XDC Network path
1) Go to their website mycrypto.com select ledger
2) Then you will have to select the Network please select XDC Network
3) Make sure your ledger live app is open with XDC app installed
4) After that click on connect ledger
5) Please make sure you have selected XDC Network path
6) You will find your address on the top of the list
7) And it will be the same address of the MEW wallet
And was able to broadcast the transaction also