pCloud WebDAV connection failure with 2FA enabled

dstillman

This discussion was created from comments split from: WebDAV error for Zotero 8.0.3.

piotr1364

9.0-beta.3+f21e1b2d3 (64-bit)
Debug ID: D505573571


With this version, WebDAV connection with pCloud (webdav.pcloud.com:443) fails when two-factor authentication is enabled on the pCloud account.

The debug output shows that the HTTP OPTIONS request to webdav.pcloud.com/zotero/ fails with status code 0 after a ~21-second timeout. The channel status is 2152398862 (NS_ERROR_NET_RESET), meaning the connection is reset at the TCP/TLS level before any HTTP response is received. Zotero never reaches the authentication handshake — there is no WWW-Authenticate challenge, no 401, just a dropped connection.

This suggests pCloud's server rejects WebDAV connections entirely when 2FA is active on the account, rather than returning an authentication error.

Is there anything Zotero could do differently here, or is this purely a pCloud-side limitation?

dstillman

There's nothing we could do about that, no.

piotr1364

**Update:** After disabling 2FA on the pCloud account, WebDAV verification still fails.
Debug ID: D933568093

For context, pCloud WebDAV has been intermittently unreliable with Zotero 7 and 8 — the same configuration sometimes works and sometimes fails across sessions, without any changes on my end.