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I need to sign into Lycos - why can"t I?
just had problem signing into my mail at Lycos.com. Get message it is not configured right -or some such. never had this problem the day before firefox updated. what can i do?
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The exact error message should be posted.
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate.
- uses an invalid security certificate SSL_ERROR_BAD_CERT_DOMAIN
- configured their website improperly
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER