I cannot log on to SL, got this message. Could not connect to ther server. the certificate returned

[Mila Avedon]

Cannot log in to SL.  Got this message.  Could not connect to the server.  The certificate returned by the Grid appears 

to be expired.   Please check your system clock or contact your Grid Admiistrator.

[Rolig Loon]

So, did you check your system clock? To verify, double-click the clock in the Windows taskbar (usually in the lower-right corner of the screen). On a Mac, check your Date & Time. Make sure it's not a year off! Most modern computers can set their time automatically, including daylight savings.

Be sure a firewall or Internet security isn't blocking Second Life access.

If you're on an office or university network, your network administrator may have secure logins disabled. In this case, you may not be able to use Second Life on that network connection. See Using Second Life with a firewall for more information.

And one final thought, from our resident expert, KarenMichelle.... "The usual reason for getting this warning is that your PC is using outdated Security Certificate Stores - SHA256 is the standard now. Are you using Windows XP?"

[Mila Avedon]

yes checked everything i could excspt for the final thought yes im using xp. what are security certificate stores?? how do i check

that?

[Rolig Loon]

You may not be able to, since even Microsoft no longer supports XP, and SL hasn't supported it for a long time. You may need to finally bite the bullet and upgrade to Win 7 or 8. I would hold off on Win 10 unless you really need its capabilities with mobile devices.

[KarenMichelle Lane]

If you are using a Windows XP version that has never been updated to SP3 you are out of luck unless you can find some site that has a copy of the SP3 upgrade for you to download. Well I'll be, It seems that Microsoft still has a download available - http://www.microsoft.com/en-us/download/details.aspx?id=24

http://windows.microsoft.com/en-us/windows/service-packs-download#sptabs=xp

[Muka Release]

I'm getting the same message trying to log on the beta server, didn't have an issue login in on the regular one so something must be wrong on linden's side.

[Rolig Loon]

Note that the OP told us that he is using Windows XP, which is no longer supported by either Microsoft or Linden Lab. THAT's the primary reason why he's getting the error message. If you are using XP, that might be your problem too.