Prior to being able to stake or transfer Gridcoin to/from the Gridcoin client you need to fully sync the Gridcoin client to the latest block on the blockchain (green tick under connections indicates a fully synced wallet)
If you don't want to sync from 0, then you can download a snapshot of the blockchain here.
Note: The snapshot will not fully sync your client, but will rather bring you up to 80-90% sync. Allow your client to manually sync after the snapshot has been implemented.
If you are unable to acquire connections to the Gridcoin network, attempt the following:
Verify that your computer time is synced to your configured time server.
Investigate whether or not your ISP is blocking P2P traffic.
Verify you're running the latest version of the Gridcoin client, as there are frequent updates. Notices of updates are posted regularly on the Gridcoin blog and Twitter.
Acquire a positive balance of Gridcoin prior to proceeding to the next step
In Gridcoin's Proof-of-Stake (POS) system, rewards are minted at a rate of 10 Gridcoin per block. Users earn their BOINC rewards when they stake a POS block.
In order to stake a block (and earn your BOINC rewards), a positive balance of GRC is required (This is the case for all POS cryptocurrencies).
There are 960 blocks per day that you can attempt to stake. A user with 1% of the total Gridcoin supply will stake approximately 10 blocks per day if 100% of coins are actively staking. Given that we don't experience 100% staking participation, your staking frequency estimation will likely be an underestimation.
The formula required to work out the quantity of coins to stake in a period of time is: