ESP32 Wifi not working when powered by battery - Project Guidance

Hello everyone, I'm quite new to ESP32 development. I've been using this devkit for a few small projects and everything was going smoothly until I decided to run it on battery. In particular, the ESP32 devkit I'm using, when connected to a battery, seems to have issues when trying to connect to the Wifi. I'm using a 9V battery connected to a MB-V2 power supply to convert the output voltage to 3.3.V. The power supply board has the following specifics: Input voltage: 6.5-9v (DC) via 5.5mm x 2.

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