Are you also facing error of System is unable to identify certificate due to one of the following reasons.
Verify whether eToken or Smartcard is inserted.
Check you have selected correct certificate name.
Check Token driver is installed properly or not. Download USB Token driver from here.
Check if there is multiple DSC Tokens are attached to system. Use only one token.
Check if you have inserted correct person certificate as per tenderer profile.
Check if you are using compatible browser or not.
Check if your DSC is valid or expired. Visit How to check Digital Signature Validity ?
Suggested Solution :
Check if any anti virus or software blocker software is active or not. If it is active, then Disable Anti Virus or Blocker for some time and try again.
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