Upgrading from 9.10 to 10.04 consistently fails

[viper161616]

Hey,
while trying to upgrade from 9.10 to 10.04, I consistently get the error:

Failed to fetch http://ca.archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_1.34_all.deb Hash Sum mismatch

I've tried on multiple computers and on virtual box, in all cases using alt-f2 typing 'update-manager -d' and following the instructions from there. I've also tried downloading the link separately but get the same error.

Any ideas? Should I just install it from scratch?

Thanks

[viper161616]

For whatever reason, this is no longer a problem and the installation is going fine. The only change has been that I am now connecting from a different city, some distance away.