Since MetaMask version 10.34.3, sometimes when switching between Networks or RPC’s, MetaMask will get stuck and it will not connect to any Networks or RPC’s untill I restart the computer.
Must do a restart. Closing the bowser or locking/unlocking the extension will not fix this.
Sorry you are having this issue. Can you please reach out to MetaMask support? This will help them gather more info.
Go to https://support.metamask.io/ > choose start a conversation > the chatbot will ask you a few questions and try to help, and then you will get connected to support. We will never ask you to share your Secret Recovery Phrase (SRP) or input onto a site for support. Never provide your SRP to anyone.