Installation Failed

Hi,

We are getting instalation failed error in some machines when trying to install.

This is the complete log

2020-07-28T00:03:16.6259680Z INFO : Stage 1 command-line options:
2020-07-28T00:03:16.6259680Z INFO : ---
2020-07-28T00:03:16.6269446Z INFO : Quiet mode on: 0
2020-07-28T00:03:16.6269446Z INFO : Automatic Proxy detection disabled: 0
2020-07-28T00:03:16.6279212Z INFO : No feedback mode on: 0
2020-07-28T00:03:16.6279212Z INFO : Dump feedback enabled: 0
2020-07-28T00:03:16.6279212Z INFO : Bypass competitor removal: 0
2020-07-28T00:03:16.6279212Z INFO : Using CRT catalog file path: --
2020-07-28T00:03:16.6288978Z INFO : Only register endpoint with Central: 0
2020-07-28T00:03:16.6288978Z INFO : Log messages between endpoint and Central: 0
2020-07-28T00:03:16.6288978Z INFO : Log command-line passed to executables: 0
2020-07-28T00:03:16.6298744Z INFO : Using custom server that hosts the installer stage2 filename : --
2020-07-28T00:03:16.6298744Z INFO : Using cloud group: --
2020-07-28T00:03:16.6298744Z INFO : Overriding computer name: --
2020-07-28T00:03:16.6298744Z INFO : Overriding computer description: --
2020-07-28T00:03:16.6308510Z INFO : Overriding domain name: --
2020-07-28T00:03:16.6308510Z INFO : Language will be set to: --
2020-07-28T00:03:16.6308510Z INFO : Using message relays: --
2020-07-28T00:03:16.6318276Z INFO : Proxy address: --
2020-07-28T00:03:16.6318276Z INFO : Proxy user name: --
2020-07-28T00:03:16.6318276Z INFO : Using custom customer token: --
2020-07-28T00:03:16.6318276Z INFO : Using specified products: --
2020-07-28T00:03:16.6328042Z INFO : Using certificates from the MCS app data folder.: 0
2020-07-28T00:03:16.6328042Z INFO : Using custom customer ID.: --
2020-07-28T00:03:16.6328042Z INFO : Using specified user ID.: --
2020-07-28T00:03:16.6328042Z INFO : Using local install source.: --
2020-07-28T00:03:16.6337808Z INFO : Using experimental SRV.: --
2020-07-28T00:03:16.6337808Z INFO : Invoked as part of SEC migration.: 0
2020-07-28T00:03:16.6337808Z INFO : ---
2020-07-28T00:03:16.6415936Z INFO : Sending HTTP 'POST' request to: api/download/stage2-details/b9efd121-598b-465b-b550-2a1016f1213b
2020-07-28T00:03:23.4328700Z WARNING : WinHttpGetProxyForUrl returned: 12180
2020-07-28T00:03:23.4338466Z INFO : Attempting to connect using proxy '' of type 'Empty Proxy'.
2020-07-28T00:03:23.4348232Z INFO : Set security protocol: 00000800
2020-07-28T00:03:23.4348232Z INFO : Opening connection to api-cloudstation-us-east-2.prod.hydra.sophos.com
2020-07-28T00:03:23.4397062Z INFO : Request content size: 30
2020-07-28T00:03:24.1125836Z INFO : Sending request
2020-07-28T00:03:24.1135602Z INFO : Request sent
2020-07-28T00:03:24.3723592Z INFO : Sending request
2020-07-28T00:03:24.3733358Z INFO : Request sent
2020-07-28T00:03:24.3733358Z INFO : Response status code: 200
2020-07-28T00:03:24.3743124Z INFO : Response data size: 174
2020-07-28T00:03:24.3743124Z INFO : trySendRequestThroughPotentialProxy returning response with status code: 200
2020-07-28T00:03:24.3752890Z INFO : Parsing message received for Stage 2 filename: '{"mcs_server":"mcs-cloudstation-us-east-2.prod.hydra.sophos.com","stage2_filename":"stage2-1.9.100.0-47a8945486d1c4f46a3cdc3ce4780b93c70b710fc3543553b07c5ddd1f3f8fc3.tar.gz"}'
2020-07-28T00:03:24.3752890Z INFO : Sending HTTP 'GET' request to: full/central/windows/business/installer/stage2-1.9.100.0-47a8945486d1c4f46a3cdc3ce4780b93c70b710fc3543553b07c5ddd1f3f8fc3.tar.gz
2020-07-28T00:03:26.6322116Z WARNING : WinHttpGetProxyForUrl returned: 12180
2020-07-28T00:03:26.6331882Z INFO : Attempting to connect using proxy '' of type 'Empty Proxy'.
2020-07-28T00:03:26.6331882Z INFO : Set security protocol: 00000800
2020-07-28T00:03:26.6341648Z INFO : Opening connection to downloads.sophos.com
2020-07-28T00:03:26.6341648Z INFO : Request content size: 0
2020-07-28T00:03:27.3226678Z INFO : Sending request
2020-07-28T00:03:27.3236444Z INFO : Request sent
2020-07-28T00:03:27.7181908Z INFO : Response status code: 503
2020-07-28T00:03:27.7191674Z INFO : Response data size: 983
2020-07-28T00:03:27.7191674Z INFO : trySendRequestThroughPotentialProxy returning response with status code: 503
2020-07-28T00:03:27.7201440Z INFO : Cleaning up extracted files
2020-07-28T00:03:29.7065484Z INFO : FindMainWindow: pid=0
2020-07-28T00:03:29.7094782Z ERROR : Exception: Failed to download stage-2 archive. Status code: 503: Bad response from new connection: status code=503

If you know what it means 503 bad response.

this is a windows server 2008 r2.

Greetings,