Your wallet may not immediately detect your upgraded ANTv2 balance. In this case, you need to add the token address (
0xa117000000f279D81A1D3cc75430fAA017FA5A2e)to your wallet. If you are using a Metamask wallet, you can follow this guide to add custom tokens.
If you are using another wallet, you should be able to find the documentation on how to add custom tokens to your wallet's interface.
You may not have specified a high enough gas price or your wallet may be experiencing issues.
If you are not familiar with the concept of gas on Ethereum, ethgas.io is a great primer. Your wallet should have built-in controls to help adjust the gas price used in your transactions so that they get mined in a timely fashion. If you are using a Metamask wallet you can find more information on how to do this in this documentation.
Please double check that your transaction has specified a high enough gas limit and that your account holds enough ETH. Using 250,000 as the gas limit for any transactions requested by the Upgrade Portal will be sufficient.