I am sorry to hear you are experiencing an issue with 1034 Error.
When you switched to 192.0.2.1 , was that hostname proxied or not?
Make sure it is proxied .
Set it to if you are using Workers or some similar configuration (like only Page Rules to redirect domain to another one).
And just in case, I would suggest you to add one more hostname, A www pointed to 192.0.2.1 and proxied too.
I use both A 192.0.2.1 and AAAA 100:: for naked domain and www (4 records in total) + using Page Rules to redirect non-www to www.
May I ask what SSL option have you got selected under the SSL/TLS tab at Cloudflare dashboard for your domain ( Flexible, Full, Full Strict … )?
→ Should be set to Full (Strict) SSL
Kindly, review the solution by following the instructions from the article below:
For more information, take a look on a recent topic related to this issue from below: