Ensure that you are inputting the correct 6 digit randomized code generated by your Google Authenticator or other similar 2FA apps.
Attempt to troubleshoot your Google Authenticator by syncing it. The guide can be found here
Depending on whether traders are using PC platform (www.bybit.com) or official Bybit app, please perform the following to restart your platform interface
Clear browser's cookies and cache, fully close the browser, relaunch www.bybit.com and attempt another fresh login. Alternatively, please use Google Chrome incognito mode to attempt a fresh login.
Check your current WiFi / mobile connection and ensure that they are fast, reliable, and secured. Disconnect and reconnect into the same or faster network connection.
Using the intial Recovery Key Phrase (RKP), attempt a fresh rebinding of your Bybit 2FA inside your Google Authenticator app. Thereafter, attempt another fresh login using the new set of generated codes.
Note: If you are still unable to login due to GA invalid code and did not store your RKP (only displayed at the point of binding), please refer to Losing your Bybit Account's Google Authenticator (GA) 2FA for more information.