Why does Cypress get ECONNRESET when accessing api.cypress.io port 443?

Question

Cypress is failing whenever it tries to start the browser for any test. The debug output (below) for Cypress says that it makes a request of api.cypress.io at port 443 but that's get rejected with ECONNRESET. This worked fine until yesterday, 3/15/2022.

 cypress:server:api request to url: POST https://api.cypress.io/exceptions with params: {"body":{"err":{"name":"Error","message":"read ECONNRESET","stack":"Error: read ECONNRESET\n    at TCP.onStreamRead (node:internal<stripped-path>stream_base_commons:211:20)\n"},"version":"9.5.2","osName":"win32","osVersion":"10.0.19044","osCpus":[{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1742484,"nice":0,"sys":2745609,"idle":83140890,"irq":564140}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1367906,"nice":0,"sys":770843,"idle":85490125,"irq":12953}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":3082156,"nice":0,"sys":1812125,"idle":82734593,"irq":58062}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1978218,"nice":0,"sys":1167062,"idle":84483593,"irq":5796}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1980421,"nice":0,"sys":1389296,"idle":84259156,"irq":58531}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1058968,"nice":0,"sys":641062,"idle":85928843,"irq":5765}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1659281,"nice":0,"sys":1226531,"idle":84743062,"irq":15203}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":7150921,"nice":0,"sys":2484828,"idle":77993125,"irq":15234}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1834953,"nice":0,"sys":1689578,"idle":84104343,"irq":15718}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1049156,"nice":0,"sys":710531,"idle":85869156,"irq":6703}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":2008078,"nice":0,"sys":2070031,"idle":83550734,"irq":40375}},{"model":"Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz","speed":2592,"times":{"user":1321593,"nice":0,"sys":1019718,"idle":85287531,"irq":8406}}],"osMemory":{"free":13561356288,"total":34093076480}},"headers":{"x-os-name":"win32","x-cypress-version":"9.5.2"}} and token: undefined +0ms
  cypress:network:agent addRequest called { isHttps: true, href: 'https://api.cypress.io/exceptions' } +4s
  cypress:network:connect beginning getAddress { hostname: 'api.cypress.io', port: 443 } +167ms
Error: read ECONNRESET
    at TCP.onStreamRead (node:internal/stream_base_commons:211:20)
 {
  errno: -4077,
  code: 'ECONNRESET',
  syscall: 'read'
}
Error: read ECONNRESET
    at TCP.onStreamRead (node:internal/stream_base_commons:211:20)

Answer 1

As I don't have enough of a reputation to upvote or add a comment onto others answers here is what I've found with this issue.

My company uses Sophos as its antivirus and this I can confirm is the cause (at least for me). After speaking with the IT team they gave me the tamper password and I was able to go into the settings and disable 'Network Threat Protection' after doing this I was able to run Cypress with no issues.

*** Update *** I've posted in the Sophos community forums here and while I test out one of the changes that needs to be made for Sophos there does appear to be a workaround (that worked for me) and that is to use the "Electron browser" rather than Chrome, Firefox or Edge.

Answer 2

I believe it's something to do with Sophos.