Solana-test-validator airdrop request if failing due to being rate limited

$ solana config getConfig File: C:\Users\.config\solana\cli\config.ymlRPC URL: http://localhost:8899WebSocket URL: ws://localhost:8900/ (computed)Keypair Path: C:\Users\id.jsonCommitment: confirmed

Above is the config setting, whenever I try to run a test validator and then request an airdrop , it always fail displaying the following message:

solana airdrop 2Requesting airdrop of 2 SOLError: airdrop request failed. This can happen when the rate limit is reached.

I read a solution suggesting to use "solana airdrop 2 -ul" but even this is not working for me.