I have downloaded kubuntu 18.04.2 from here. I verified ISO by sha256 checksums, surprisingly they are different. The sha256sum for ISO:
but checksum in file SHA256SUMS was:
While downloading the file there was no internet connection problem but since my service provider gives me only 1GB daily. When it was ended I switched to another connecttion but my download wasn't paused. It was finished in an hour. Why are the checksums different? Is my download incorrect? Do I need to download again? Thanks...