However, you will need to enter the Wi-Fi password again, so note it down if you don’t remember. When you reset network settings on OnePlus 7 Pro, all the network related settings will get restored to default including Wi-Fi password.
Navigate using the Volume Up/Down keys and press the Power button when it comes to Wipe Cache.
Once the phone is off, hold down the Power key and Volume Down key until the recovery screen turns up.
Press the Power Key to Shut down the phone.
This command will list every Wi-Fi profile that you’ve ever connected to. There are two benefits of this, enough memory space will be freed and malicious files will be deleted from the device. Open command prompt, and run it as an administrator. When you perform Wipe Cache Data, the cache files from the device gets removed. Haven’t you updated the device to the latest firmware? Don’t be lazy in updating because outdated versions will somehow cause multiple issues and you will get frustrated. The process to change the Wi-Fi password may vary, so contact your service provider and ask them how to change the Wi-Fi password.
I would suggest you keep your connection open for a while and try to connect OnePlus 7 Pro with Wi-Fi.