Solved! I lost channels after our snow storm in Taylors,sc. rescanned and still can’t pick up channels 21 but all others came back..

[h2hummer679]

Can’t pick up fox 21 in Taylors sc after scanning

 

[americanaudiophile]

If you are using a roof antenna it may have moved in the storm or a connection came loose. That may reduce the signal for 21 just enough that you can't get it anymore.