Thanks for being a part of the Apple Support Communities. From your post, I understand you are having trouble with Siri. Specifically, when you ask Siri a question, Siri responds with a message indicating it is unable to connect to the network. I'm happy to help!
Based on what you've described, I would recommend teh following steps from Get help with Siri on your iPhone, iPad, or iPod touch - Apple Support :
If Siri isn't available, or doesn't understand or respond to questions
Siri might say something like, "Sorry, I'm having trouble connecting to the network," or "Try again in a little while." This is probably a network issue. Check your Internet connection and try again later.
If Siri still doesn't work as expected, try these steps. After each step, see if Siri is working.
- On your iOS device, go to Settings > Siri & Search, and make sure that Listen for "Hey Siri" and Press Home for Siri are on. Also, go to Settings > General > Restrictions, and make sure that Siri & Dictation isn't off.
- Restart your iPhone, iPad, or iPod touch.
- Go to Settings > Siri & Search and turn off "Hey Siri" and Press Home for Siri. Then turn both back on again.
- If you're using an iOS device, try to use Siri with a headset. If Siri only works when you're using a headset, get help with the microphones on your device.
If Siri still doesn't work, contact Apple Support.
Have a great day!