When users are using SmartCard device to Launch Desktop or Application, the have noticed that  after logging to ICA session (Citrix Virtual Apps & desktops version 7.15 CU2 LTSR on Windows Server 2016)  all user's certificates checked with special application. If a certificate is not valid/expired, this special application works with SmartCard and deletes/issues & saves new certificate. This process sometimes takes more than 60s,  After 60s connection to SmartCard device is lost and following exception is thrown.

[2019-06-05 17:02:52.126E4FC1 PID=0000DC98 TID=0002FE30] L(02) MPMD_VerifyMPSignature 0x0 [2019-06-05 17:02:53.126E535B PID=0000DC98 TID=00023460] L(00) DLL_THREAD_DETACH [2019-06-05 17:02:55.126E5CB2 PID=0000DC98 TID=00030930] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:04.126E7FCA PID=0000DC98 TID=00011884] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:11.126E9B9F PID=0000DC98 TID=00001D9C] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:11.126E9B9F PID=0000DC98 TID=0002F564] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:11.126E9B9F PID=0000DC98 TID=0002D47C] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:16.126EAEC9 PID=0000DC98 TID=0002A06C] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:24.126ECF80 PID=0000DC98 TID=000088F0] L(00) DLL_THREAD_DETACH [2019-06-05 17:03:52.126F3A21 PID=0000DC98 TID=0002FE30] ER L(02) SCardTransmit !ERR 0x8010001d

Issue is not reproducible,at all time.  

Problem Cause

This is a Microsoft problem, and customer needs involve Microsoft for the fix. However, they can  get around the problem by setting the above  registry  key