Hi there,
Since you are experiencing this issue across multiple browsers and the mobile app simultaneously, it usually points to either a temporary service outage or a network-level restriction.
Here are the steps you should take to identify and fix the problem:
Check Trello Status: First, verify if Trello is having a global service issue by visiting status.atlassian.com. If "Trello" shows anything other than green, the issue is on Atlassian's side and they are likely already working on a fix.
Network Check: If the status page is green, try switching your mobile device from Wi-Fi to Cellular data (or vice versa). If it works on cellular but not on Wi-Fi, your local network or firewall might be blocking Trello's servers.
VPN/Proxy: If you are using a VPN or a corporate proxy, try disabling it. These can often interfere with the connection to Trello’s real-time servers.
Clear DNS Cache: Sometimes outdated DNS records cause "server not found" errors. You can try flushing your DNS or switching to a public DNS like Google (8.8.8.8).
ISP Issues: In rare cases, specific Internet Service Providers (ISPs) have routing issues to Atlassian’s cloud. Checking with a different internet source can confirm this.
Is there a specific error code? If you see a specific number (like 403, 502, or 503) or a "Cloudflare" error page, please let us know, as that would help narrow down the cause!
Hope you can get back to your boards soon!
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