This is a regression caused by bug 3984. When doing that change, we inadvertently added the requirement that the ATR buffer must be 33 bytes, when a 32 byte one will suffice.
Fixed in r27612 and r27613.
Done several tests: * Login to Apoteket using BankID+Fribid * Init PKCS15 card using my pkcs15-selfsigned.sh * Basic test with NetID for Linux Tested these combinations: server client ======================= 4.1.0 4.1.1win ok 4.1.0 4.1.1lin ok 4.1.1 4.1.0win ok 4.1.1 4.1.0lin ok 4.1.1 4.1.1win ok 4.1.1 4.1.1lin ok