Internet connection blocked

Development Platform & Builds
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1

Hi everyone,
Epic Games Launcher and Unreal Engine are showing as offline and seem to have their internet connection blocked.
I’m attaching a log from Unreal Engine for reference.

My router and internet connection are working fine — I checked on other PCs connected to the same network.
Something is blocking the connection on my main PC, and I can’t figure out what it could be.

Has anyone experienced a similar issue or found a solution?

LogEOSSDK: Warning: LogHttp: 000007C2847AA800: invalid HTTP response code received. URL: https://api.epicgames.dev/sdk/v1/default?platformId=WIN, HTTP code: 0, content length: 0, actual payload size: 0
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: request failed, libcurl error: 35 (SSL connect error)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 0 (Hostname api.epicgames.dev was found in DNS cache)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 1 (  Trying 52.3.32.235:443...)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 2 (Connected to api.epicgames.dev (52.3.32.235) port 443)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 3 (ALPN: curl offers http/1.1)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 4 (TLSv1.3 (OUT), TLS handshake, Client hello (1):)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 5 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 6 (OpenSSL SSL_connect: Connection was reset in connection to api.epicgames.dev:443 )
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 7 (Closing connection)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 8 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: 000007C2847AA800: libcurl info message cache 9 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: Retry exhausted on https://api.epicgames.dev/sdk/v1/default?platformId=WIN
LogEOSSDK: Warning: LogEOS: Failed to connect to the backend. ServiceName=[SDKConfig], OperationName=[GetPlatformConfigRoute], Url=[<Redacted>]
LogEOSSDK: Warning: LogEOS: SDK Config Platform Update Request Failed, Result Code: EOS_NoConnection, Retrying after 7.687979 seconds
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: invalid HTTP response code received. URL: https://api.epicgames.dev/telemetry/data/datarouter/api/v1/public/data?SessionID=%7BF2B33A66-4C33-88A4-2A2B-16829D44ABB5%7D&AppID=EOSSDK.PhaseRelease.ReleaseBuild&AppVersion=1.17.0-39599718%20-%20%2B%2BEOSSDK%2BRelease-1.17.0-CL-39599718&UserID=&AppEnvironment=Production&UploadType=sdkevents, HTTP code: 0, content length: 0, actual payload size: 0
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: request failed, libcurl error: 35 (SSL connect error)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 0 (Hostname in DNS cache was stale, zapped)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 1 (  Trying 34.232.202.205:443...)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 2 (Connected to api.epicgames.dev (34.232.202.205) port 443)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 3 (ALPN: curl offers http/1.1)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 4 (TLSv1.3 (OUT), TLS handshake, Client hello (1):)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 5 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 6 (OpenSSL SSL_connect: Connection was reset in connection to api.epicgames.dev:443 )
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 7 (Closing connection)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 8 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: 000007C2847AD800: libcurl info message cache 9 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: Retry exhausted on https://api.epicgames.dev/telemetry/data/datarouter/api/v1/public/data?SessionID=%7BF2B33A66-4C33-88A4-2A2B-16829D44ABB5%7D&AppID=EOSSDK.PhaseRelease.ReleaseBuild&AppVersion=1.17.0-39599718%20-%20%2B%2BEOSSDK%2BRelease-1.17.0-CL-39599718&UserID=&AppEnvironment=Production&UploadType=sdkevents
LogHttp: Warning: 000007C28B0D9A00: request failed, libcurl error: 35 (SSL connect error)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 0 (Hostname in DNS cache was stale, zapped)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 1 (  Trying 52.73.191.48:443...)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 2 (Connected to datarouter.ol.epicgames.com (52.73.191.48) port 443)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 3 (ALPN: curl offers http/1.1)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 4 (TLSv1.3 (OUT), TLS handshake, Client hello (1):)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 5 (Recv failure: Connection was reset)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 6 (OpenSSL SSL_connect: Connection was reset in connection to datarouter.ol.epicgames.com:443 )
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 7 (Closing connection)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 8 (Recv failure: Connection was reset)
LogHttp: Warning: 000007C28B0D9A00: libcurl info message cache 9 (Recv failure: Connection was reset)
LogEOSSDK: LogEOS: Updating Platform SDK Config, Time: 727.553955
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: invalid HTTP response code received. URL: https://api.epicgames.dev/sdk/v1/default?platformId=WIN, HTTP code: 0, content length: 0, actual payload size: 0
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: request failed, libcurl error: 35 (SSL connect error)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 0 (Hostname api.epicgames.dev was found in DNS cache)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 1 (  Trying 34.232.202.205:443...)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 2 (Connected to api.epicgames.dev (34.232.202.205) port 443)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 3 (ALPN: curl offers http/1.1)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 4 (TLSv1.3 (OUT), TLS handshake, Client hello (1):)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 5 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 6 (OpenSSL SSL_connect: Connection was reset in connection to api.epicgames.dev:443 )
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 7 (Closing connection)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 8 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: 000007C2847AA200: libcurl info message cache 9 (Recv failure: Connection was reset)
LogEOSSDK: Warning: LogHttp: Retry exhausted on https://api.epicgames.dev/sdk/v1/default?platformId=WIN
LogEOSSDK: Warning: LogEOS: Failed to connect to the backend. ServiceName=[SDKConfig], OperationName=[GetPlatformConfigRoute], Url=[<Redacted>]
LogEOSSDK: Warning: LogEOS: SDK Config Platform Update Request Failed, Result Code: EOS_NoConnection, Retrying after 15.380352 seconds
LogEOSSDK: Warning: LogEOSAnalytics: Unable to get the client auth token. Last result: EOS_NoConnection.
2

Hello there @Antaras9!

Checking through your log, the main issue should come from the following line:

OpenSSL SSL_connect: Connection was reset in connection to api.epicgames.dev:443

This error is tied to HTTPS comms, so something is indeed blocking your link between Epic and your main rig. From other cases across the community, the usual suspects are your antivirus, your firewall, and any active VPNs:

  • From your security (antivirus and/or firewall), add exceptions for UnrealEditor.exe, EpicGamesLauncher.exe, and UnrealCEFSubProcess.exe, then disable any functions related to SSL scanning or HTTPS inspection.

  • Make sure port 443 is not being blocked in your firewall. As a last resort, disable your antivirus.

  • If you are working with any VPN, disable it for testing.

  • Perform a flush DNS and network reset, and restart your PC afterwards:

ipconfig /flushdns
netsh winsock reset
netsh int ip reset

  • Please get the latest Windows Update for your system, so your root certificates are updated as well.

  • Navigate to EpicGamesLauncher\Saved\webcache and delete any webcache folders present there. Open the Launcher again after that.

  • Last resort, a full uninstall/reinstall of all Epic software:

  • First, uninstall the engine, launcher, asset packs, etc
  • Next, open the registry directory HKEY_CURRENT_USER\Software\Epic Games\Unreal Engine\Builds, and delete any build entries
  • Finally, delete the folders %userprofile%\AppData\Local\UnrealEngine and %userprofile%\AppData\Local\UnrealHeaderTool
  • After that, no elements related to UE should be left in your system
  • Now, reinstall UE launcher from scratch, and only add the latest version of the engine
  • After the process is complete, open the launcher again
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