Hi all, I have a new installed firefox 55.0.1 64bit on windows 10, enterprise, I have successfully setup sync and with email verified, but sync looks not started at all. Click sync icon or select 'Sync now' from menu does not working as well. about:sync-log shows the following: 1502869704236 Sync.ErrorHandler DEBUG Beginning user-triggered sync. 1502869704236 Sync.Service DEBUG User-Agent: Firefox/55.0.1 (Windows NT 10.0; Win64; x64) FxSync/1.57.0.20170809080026.desktop 1502869704236 Sync.Service INFO Starting sync at 2017-08-16 15:48:24 in browser session vuhdd5yMdpf- 1502869704236 Sync.Service DEBUG In sync: should login. 1502869704236 Sync.BrowserIDManager INFO currentAuthState returning error.login.reason.network due to previous failure 1502869704236 Sync.Status DEBUG Status.login: error.login.reason.network => error.login.reason.network 1502869704236 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1502869704236 Sync.Service INFO Logging in the user. 1502869704236 Sync.BrowserIDManager INFO Waiting for user to be verified. 1502869704236 FirefoxAccounts DEBUG already verified 1502869704236 Sync.BrowserIDManager INFO Starting fetch for key bundle. 1502869704237 FirefoxAccounts DEBUG already verified 1502869704237 Sync.BrowserIDManager INFO Getting an assertion from: https://token.services.mozilla.com/1.0/sync/1.5 1502869704237 FirefoxAccounts DEBUG enter getAssertion() 1502869704238 FirefoxAccounts DEBUG got keyPair 1502869704238 FirefoxAccounts DEBUG getCertificateSigned: true true 1502869704239 Services.Common.RESTRequest TRACE local time, offset: 1502869704239, 0 1502869704239 Services.Common.RESTRequest TRACE hawk auth header: Hawk id="3eeaa33eb33ba9654c1b84b0c5c0d32c2e3792847544c613e9aed11f1c79db62", ts="1502869704", nonce="/63PTiTCfTI=", hash="E+U1xxsGlkG2RucGwmlzxgYRhkTBYPZnRieKlEKU6UY=", mac="3T50PKjPYPVrOq8JhIctN9r8lq40oL6ZwTmEFXdV0ns=" 1502869704240 Services.Common.RESTRequest DEBUG POST request to https://api.accounts.firefox.com/v1/certificate/sign 1502869704240 Services.Common.RESTRequest TRACE HTTP Header authorization: ***** (suppressed) 1502869704240 Services.Common.RESTRequest TRACE HTTP Header content-type: application/json 1502869704240 Services.Common.RESTRequest TRACE HTTP Header accept-language: en-US, en 1502869704240 Services.Common.RESTRequest DEBUG POST Length: 888 1502869704240 Services.Common.RESTRequest TRACE POST Body: {"publicKey":{"algorithm":"DS","y":"C3761EE42302BB30C9D40C5FA8AEB73DBA901803B5E8E32D36E63EF64E5673979EDF331607E9CF3D1D7AF4CBBEDF1703D7A671C53F2640BDA28CB9CC7704FA2110B8E91920CC0A6D609546843D77D7470D212AA3B4FFFB484993777D4C98AC3E8D66AA68D31A728E1075CE296BE965871CE1937545EC55813C89912157436764","p":"FF600483DB6ABFC5B45EAB78594B3533D550D9F1BF2A992A7A8DAA6DC34F8045AD4E6E0C429D334EEEAAEFD7E23D4810BE00E4CC1492CBA325BA81FF2D5A5B305A8D17EB3BF4A06A349D392E00D329744A5179380344E82A18C47933438F891E22AEEF812D69C8F75E326CB70EA000C3F776DFDBD604638C2EF717FC26D02E17","q":"E21E04F911D1ED7991008ECAAB3BF775984309C3","g":"C52A4A0FF3B7E61FDF1867CE84138369A6154F4AFA92966E3C827E25CFA6CF508B90E5DE419E1337E07A2E9E2A3CD5DEA704D175F8EBF6AF397D69E110B96AFB17C7A03259329E4829B0D03BBC7896B15B4ADE53E130858CC34D96269AA89041F409136C7242A38895C9D5BCCAD4F389AF1D7A4BD1398BD072DFFA896233397A"},"duration":21600000} 1502869704269 Services.Common.RESTRequest TRACE onStartRequest: POST https://api.accounts.firefox.com/v1/certificate/sign 1502869704269 Services.Common.RESTRequest TRACE Channel for POST https://api.accounts.firefox.com/v1/certificate/sign returned status code 2147500037 1502869704269 Services.Common.RESTRequest DEBUG POST https://api.accounts.firefox.com/v1/certificate/sign failed: 2147500037 - NS_ERROR_FAILURE 1502869704269 Hawk WARN hawk request error: [Exception... "NS_ERROR_FAILURE" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483" data: no] Stack trace: onStopRequest()@resource://services-common/rest.js:483 < waitForSyncCallback()@resource://services-common/async.js:98 < makeSpinningCallback/callback.wait()@resource://services-common/async.js:168 < onNotify()@resource://services-sync/service.js:817 < WrappedNotify()@resource://services-sync/util.js:160 < WrappedLock()@resource://services-sync/util.js:116 < WrappedCatch()@resource://services-sync/util.js:91 < login()@resource://services-sync/service.js:833 < sync/<()@resource://services-sync/service.js:1056 < WrappedCatch()@resource://services-sync/util.js:91 < sync()@resource://services-sync/service.js:1052 1502869704269 Hawk DEBUG (Response) /certificate/sign: code: null - Status text: null 1502869704270 FirefoxAccounts ERROR error POSTing /certificate/sign: {"error":{},"errorString":"[Exception... \"NS_ERROR_FAILURE\" nsresult: \"0x80004005 (NS_ERROR_FAILURE)\" location: \"JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483\" data: no]","message":null,"code":null,"errno":null} 1502869704271 FirefoxAccounts ERROR HAWK.signCertificate error: {"error":{},"errorString":"[Exception... \"NS_ERROR_FAILURE\" nsresult: \"0x80004005 (NS_ERROR_FAILURE)\" location: \"JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483\" data: no]","message":null,"code":null,"errno":null} 1502869704272 Sync.BrowserIDManager ERROR Non-authentication error in _fetchTokenForUser: {"error":{},"errorString":"[Exception... \"NS_ERROR_FAILURE\" nsresult: \"0x80004005 (NS_ERROR_FAILURE)\" location: \"JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483\" data: no]","message":null,"code":null,"errno":null} 1502869704272 Sync.Status DEBUG Status.login: error.login.reason.network => error.login.reason.network 1502869704272 Sync.Status DEBUG Status.service: error.login.failed => error.login.failed 1502869704272 Sync.BrowserIDManager ERROR Background fetch for key bundle failed: {"error":{},"errorString":"[Exception... \"NS_ERROR_FAILURE\" nsresult: \"0x80004005 (NS_ERROR_FAILURE)\" location: \"JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483\" data: no]","message":null,"code":null,"errno":null} 1502869704272 Sync.BrowserIDManager ERROR Could not authenticate: {"error":{},"errorString":"[Exception... \"NS_ERROR_FAILURE\" nsresult: \"0x80004005 (NS_ERROR_FAILURE)\" location: \"JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483\" data: no]","message":null,"code":null,"errno":null} 1502869704272 Sync.SyncScheduler DEBUG Clearing sync triggers and the global score. 1502869704273 Sync.SyncScheduler DEBUG Next sync in 3600000 ms. 1502869704273 Sync.ErrorHandler ERROR Sync encountered a login error 1502869704274 Sync.Service DEBUG Exception calling WrappedLock: {"error":{},"errorString":"[Exception... \"NS_ERROR_FAILURE\" nsresult: \"0x80004005 (NS_ERROR_FAILURE)\" location: \"JS frame :: resource://services-common/rest.js :: onStopRequest :: line 483\" data: no]","message":null,"code":null,"errno":null} 1502869704274 Sync.Service DEBUG Not syncing: login returned false. 1502869704282 Sync.ErrorHandler DEBUG Addons installed: 0