Before starting i should say that i am quite new and making this AI agent for the first time related to travel information . My AI agent is fetching all the required data from google sheet for sending the same through whatsapp chat.
My work flow is success when i execute the flow manually but it is not getting automatically triggered. I have contacted both n8n and Twilio,
Twilio has identified the issue: they’re getting “Error 11200 - unable to fetch response from URL” when trying to call my webhook, even though manual curl requests work fine.
Twilio’s Diagnosis:
This indicates a connectivity issue between Twilio’s servers and n8n cloud, specifically:
SSL certificate issues (invalid or self-signed certificate)
Firewall blocking Twilio’s IP ranges
Access restrictions on the n8n cloud instance
Response timeouts beyond 15 seconds
I need help in this urgently, i am stuck with this and need to fix this urgently.
Thnx for your message. I have been trying to get the help from n8n but even for the paid account they are not been doing any help. Can you tell me how can i check the following at my end as suggeted by you.
Checking that the webhook URL is using a valid public SSL cert (no custom/self-signed certs
Verifying there are no IP restrictions or security settings blocking Twilio traffic on the n8n instance.
I am really sorry for being ignorant in all this and appreciate your kind help. My project is stuck only because of this.