1. Ensure you have set your authorized IP at control panel.
2. Try using fewer connections.
3. If you're using a bot, ensure 3-5 seconds delay and rotate IPs frequently.
If you still see issues, please submit a ticket to support and provide the following details:
What error message are you getting?
Where are you using the proxies?
What url are you trying to visit?
Provide the proxies you're having issues with.