Peer certificate is invalid

[sanlucas 0]

Hi I have about 40 pcs that shows me this error

Peer certificate is invalid

What should I check?

Server:

ESET Security Management Center (Server), Version 7.1 (7.1.503.0)
ESET Security Management Center (Web Console), Version 7.1 (7.1.393.0)

 

Clients:

Agente 6.5.522.0

ERA 7.1.2053.0

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I made that update in July last year and had to update all the clients win7 and XP manually

At the time create a completely new server from 0.

this is the status.html3

Scope	Time	Text
Last authentication	2020-Mar-11 11:26:49	Enrollment OK
Last replication	2020-Mar-11 11:26:50	ERROR: InitializeConnection: Initiating replication connection to 'host: "192.168.0.100" port: 2222' failed with: Request: Era.Common.Services.Replication.CheckReplicationConsistencyRequest on connection: host: "192.168.0.100" port: 2222 with proxy set as: Proxy: Connection: 192.168.0.54:3128, Credentials: Name: gaston, Password: ******, Enabled:1, EnabledFallback:1, failed with error code: 14, error message: Connect Failed, and error details: Replication details: [Task: CReplicationConsistencyTask, Scenario: Automatic replication (REGULAR), Connection: 192.168.0.100:2222, Connection established: false, Replication inconsistency detected: false, Server busy state detected: false, Realm change detected: false, Realm uuid: c9571c4d-bc84-11e9-9313-1a4868efc0ac, Sent logs: 0, Cached static objects: 53, Cached static object groups: 10, Static objects to save: 0, Static objects to delete: 0, Modified static objects: 0] All replication attempts: 33123
Last successful replication	2020-Mar-09 11:02:49	OK Successful replications: 30217 All replication attempts: 30219 Connection: 192.168.0.100:2222 Scenario: REGULAR
Peer certificate	2020-Mar-11 10:59:49	Error Agent peer certificate with subject 'CN=Agent at *, C=US' issued by 'CN=Server Certification Authority, C=US' with serial number '018437f343bd744248ba7128a7e21ba08501' is invalid now (NodVerifyTrustResult: 42, NVT_NotTrusted, X509ChainStatus: 0x10000, X509CSF_PartialChain) Peer certificate may be valid but can not be verified on this machine Check time validity and presence of issuing certification authority
Product	2020-Feb-17 11:29:38	Product install configuration: Product type: Agent Product version: 7.0.577.0 Product locale: en_US
Replication security	2020-Mar-11 11:26:50	OK Remote host: 192.168.0.100 Remote product: Server

 

I have not changed any certificate not in clients or servers, I have only run updates for the server through the console