If perplexity.ai isn't opening at all, start with the basics: clear your browser cache, try a different browser, or open an incognito tab. Sometimes a stale DNS cache is the culprit — flush it with ipconfig /flushdns on Windows or sudo dscacheutil -flushcache on Mac. If the site loads on your phone but not on your desktop, the issue is almost certainly local.
This usually happens when the service is under heavy load or when your query hits a processing timeout. Try rephrasing the question — shorter, more direct prompts tend to go through cleanly. If the error persists across multiple queries, wait a few minutes and retry. The backend occasionally needs a moment to recover.
If your Pro subscription payment fails, first confirm your card details are current in the billing section. Some banks flag AI service charges as suspicious and block them automatically — a quick call to your bank usually clears this. If the charge shows as pending but the subscription didn't activate, wait up to 15 minutes before contacting support.
A frozen UI mid-conversation is typically a browser memory issue. Reload the page — your conversation history is saved to your account, so nothing gets lost. If freezes happen regularly, disable browser extensions one by one to find the conflict. Heavy extensions like ad blockers or script managers are frequent offenders.
When a response cuts off abruptly, it's usually a dropped connection rather than a service fault. Check your network stability, then click the regenerate button. If you're on Wi-Fi, switching to a wired connection or mobile data often solves intermittent drops like this.