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SRTools won't connect

The five checks that resolve almost every connection failure.

Work through these before asking for help — they cover nearly every report.

  1. Is the site exactly https://srtools.neonteam.dev/? Other SRTools variants are not currently supported.
  2. Is the game online? Synchronization talks to the running game, not just the server.
  3. Does the Server URL match your server channel? March7th.cc is https://server.march7th.cc/sr-tools, HoyoToon is https://march7th.hoyotoon.com/sr-tools, KunPS is http://210.16.175.19:520/sr-tools. The servers are separate, so a URL for a different channel will not find your account — and the failure doesn't look obvious.
  4. Is Username your in-game UID? The game account's login name will not connect. The password is your game account password.
  5. Is the data stale? After a version update, clear the browser cache or wait for an SRTools update.

If all five pass, ask in QQ group 1106945834, or search #support on Discord for the same error message and create a post there if nobody has hit it yet. Include the error and the relevant logs — see getting help.

Original post: Troubleshooting SRTools Connection Issues.