lordmadmunki
Refugee
- Version
- 2.5
- Platform
- Windows
When I launch the client, says "Can not fully initialize Epic Online Services".

I get a similar error on the dedicated server:
2025-12-24T20:15:44 157.673 ERR [EOS] Failed registering session on backend: UnrecognizedResponse
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/sdk/v1/default?platformId=WIN, HTTP code: 503, content length: 148, actual payload size: 148, elapsed: 11.70s
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:22 GMT
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 148
2025-12-24T20:13:22 15.891 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:22 15.891 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-WsuZ0X3EHk-b1h_esC_Ehw
2025-12-24T20:13:22 15.891 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:22 15.891 WRN [EOS] [LogEOS - Warning] Error response received from backend. Response is not JSON. ServiceName=[SDKConfig], OperationName=[GetPlatformConfigRoute], Url=[<Redacted>], HttpStatus=[503], CorrId=[EOS-YNJj4z7NDEGVIlnLyGmzEQ-WsuZ0X3EHk-b1h_esC_Ehw]
2025-12-24T20:13:22 15.892 WRN [EOS] [LogEOS - Warning] SDK Config Platform Update Request Failed, Result Code: EOS_UnrecognizedResponse, Retrying after 2.767724 seconds
2025-12-24T20:13:35 28.699 WRN [EOS] [LogEOS - Warning] Error response received from backend. Response is not JSON. ServiceName=[SDKConfig], OperationName=[GetPlatformConfigRoute], Url=[<Redacted>], HttpStatus=[504], CorrId=[]
2025-12-24T20:13:35 28.701 WRN [EOS] [LogEOS - Warning] SDK Config Platform Update Request Failed, Result Code: EOS_UnrecognizedResponse, Retrying after 4.229866 seconds
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 91, actual payload size: 91, elapsed: 0.18s
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:40 GMT
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 91
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:40 33.493 WRN [EOS] [LogHttp - Warning] Lockout of 2.694784s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:42 36.189 WRN [EOS] [LogHttp - Warning] Retry 1 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:43 36.453 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.25s
2025-12-24T20:13:43 36.453 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:43 GMT
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] Lockout of 4.103153s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:47 40.557 WRN [EOS] [LogHttp - Warning] Retry 2 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:47 40.888 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.30s
2025-12-24T20:13:47 40.888 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:47 GMT
2025-12-24T20:13:47 40.888 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] Lockout of 10.537431s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:58 51.428 WRN [EOS] [LogHttp - Warning] Retry 3 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.50s
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:58 GMT
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] Lockout of 21.905453s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:14:20 73.848 WRN [EOS] [LogHttp - Warning] Retry 4 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.35s
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:14:20 GMT
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:14:20 74.203 WRN [EOS] [LogEOS - Warning] Error response received from backend. Response is not JSON. ServiceName=[EOSAuth], OperationName=[TokenGrant], Url=[<Redacted>], HttpStatus=[503], CorrId=[EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw]
2025-12-24T20:14:20 74.224 ERR [EOS] QueryFile (PlatformOverrides) failed: UnrecognizedResponse
2025-12-24T20:14:20 74.225 ERR [TitleStorageOverridesManager] Failed to load root from title storage override XML.
2025-12-24T20:14:20 74.226 WRN [EOS] [LogEOS - Warning] SDK Config Product Update Request Failed, Result Code: EOS_UnrecognizedResponse, Retrying after 3.249672 seconds

I get a similar error on the dedicated server:
2025-12-24T20:15:44 157.673 ERR [EOS] Failed registering session on backend: UnrecognizedResponse
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/sdk/v1/default?platformId=WIN, HTTP code: 503, content length: 148, actual payload size: 148, elapsed: 11.70s
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:22 GMT
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:22 15.890 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 148
2025-12-24T20:13:22 15.891 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:22 15.891 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-WsuZ0X3EHk-b1h_esC_Ehw
2025-12-24T20:13:22 15.891 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:22 15.891 WRN [EOS] [LogEOS - Warning] Error response received from backend. Response is not JSON. ServiceName=[SDKConfig], OperationName=[GetPlatformConfigRoute], Url=[<Redacted>], HttpStatus=[503], CorrId=[EOS-YNJj4z7NDEGVIlnLyGmzEQ-WsuZ0X3EHk-b1h_esC_Ehw]
2025-12-24T20:13:22 15.892 WRN [EOS] [LogEOS - Warning] SDK Config Platform Update Request Failed, Result Code: EOS_UnrecognizedResponse, Retrying after 2.767724 seconds
2025-12-24T20:13:35 28.699 WRN [EOS] [LogEOS - Warning] Error response received from backend. Response is not JSON. ServiceName=[SDKConfig], OperationName=[GetPlatformConfigRoute], Url=[<Redacted>], HttpStatus=[504], CorrId=[]
2025-12-24T20:13:35 28.701 WRN [EOS] [LogEOS - Warning] SDK Config Platform Update Request Failed, Result Code: EOS_UnrecognizedResponse, Retrying after 4.229866 seconds
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 91, actual payload size: 91, elapsed: 0.18s
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:40 GMT
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 91
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:40 33.492 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:40 33.493 WRN [EOS] [LogHttp - Warning] Lockout of 2.694784s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:42 36.189 WRN [EOS] [LogHttp - Warning] Retry 1 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:43 36.453 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.25s
2025-12-24T20:13:43 36.453 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:43 GMT
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:43 36.454 WRN [EOS] [LogHttp - Warning] Lockout of 4.103153s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:47 40.557 WRN [EOS] [LogHttp - Warning] Retry 2 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:47 40.888 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.30s
2025-12-24T20:13:47 40.888 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:47 GMT
2025-12-24T20:13:47 40.888 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:47 40.889 WRN [EOS] [LogHttp - Warning] Lockout of 10.537431s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:58 51.428 WRN [EOS] [LogHttp - Warning] Retry 3 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.50s
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:13:58 GMT
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:13:58 51.940 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Server: eos-gateway
2025-12-24T20:13:58 51.941 WRN [EOS] [LogHttp - Warning] Lockout of 21.905453s on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:14:20 73.848 WRN [EOS] [LogHttp - Warning] Retry 4 on https://api.epicgames.dev/auth/v1/oauth/token
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700: request has been successfully processed. URL: https://api.epicgames.dev/auth/v1/oauth/token, HTTP code: 503, content length: 81, actual payload size: 81, elapsed: 0.35s
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Date: Thu, 25 Dec 2025 02:14:20 GMT
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Type: text/plain
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Content-Length: 81
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header Connection: keep-alive
2025-12-24T20:14:20 74.202 WRN [EOS] [LogHttp - Warning] 000001ED73A8A700 Response Header X-Epic-Correlation-Id: EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw
2025-12-24T20:14:20 74.203 WRN [EOS] [LogEOS - Warning] Error response received from backend. Response is not JSON. ServiceName=[EOSAuth], OperationName=[TokenGrant], Url=[<Redacted>], HttpStatus=[503], CorrId=[EOS-YNJj4z7NDEGVIlnLyGmzEQ-EM2svavIt0GXD6XwJdIUbw]
2025-12-24T20:14:20 74.224 ERR [EOS] QueryFile (PlatformOverrides) failed: UnrecognizedResponse
2025-12-24T20:14:20 74.225 ERR [TitleStorageOverridesManager] Failed to load root from title storage override XML.
2025-12-24T20:14:20 74.226 WRN [EOS] [LogEOS - Warning] SDK Config Product Update Request Failed, Result Code: EOS_UnrecognizedResponse, Retrying after 3.249672 seconds
- Reproduction Steps
- Launch game or start dedicated server.
- Link to Logs
- https://justpaste.it/ko9i2
- Link to Screenshot/Video
- https://justpaste.it/ljbud

