Forticlient V5.2.6 Av-Update failed

Hi,

i have noticed an update issue for the FortiClient 5.2.6 (win7/64bit).

Windows said that the database is old.

Have checked the database on the FC and it say that it is up to date.

Have then run a Diagnostic Check with the Fc-Tools.

and checked the steps through this KB below.

https://kb.fortinet.com/k...=FD41351&sliceId=1

Result:

<?xml version="1.0" encoding="UTF-8" ?> 
- <CheckUpdate serial_number="" server_addr="forticlient.fortinet.net" port="80">
- <ResolvedServerIP addr="forticlient.fortinet.net">
  <ServerIP ip="96.45.33.106" /> 
  <ServerIP ip="96.45.33.105" /> 
  <ServerIP ip="173.243.138.99" /> 
  <ServerIP ip="173.243.138.107" /> 
  <ServerIP ip="173.243.138.98" /> 
  </ResolvedServerIP>
- <RequestList>
  <Object id="00000000FSCI00000000000000000000" /> 
  <Object id="00000000FDNI00000000000000000000" /> 
  <Object id="01000000FECT00000" /> 
  </RequestList>
  <ERROR msg="FR_connect() failed" ret="-3000" err="126" /> 
  <ERROR msg="FCP_send_request() failed" ret="-3000" err="126" /> 
  <ERROR msg="FCP_recv_response() failed" ret="-3000" err="126" /> 
  <ResponseList num="0" /> 
  </CheckUpdate>

The Ip 96.45.33.106/ 96.45.33.105 ist pingable.

A telnet connection to port 8889 fails.

A browser connection via https to forticlient.fortinet.com fails with a bad certificate/handshake.

The logs say that the last successfull updade was on 30.1.2020. Since this time no updates occures.

It is a little bit odd because it fails exactly on the end of January.

Any hints what's happened? Does fortinet shutdown av-updates for Forticlient?

Regards