I just assembled my EPYC 7401P server yesterday and for most of part, it's working fine. (Except AMD false-advertised their all-core boost, which comes far far behind 2.8GHz. That's a separate topic if anyone interested, but doesn't belong here.)

However, I am getting "Download Error" on MIP1, and MIP1 only. The error all looks same:

<core_client_version>7.9.2</core_client_version>
<![CDATA[
<message>
WU download error: couldn't get input files:
<file_xfer_error>
<file_name>mip1.MIP1_databasev2.zip</file_name>
<error_code>-224 (permanent HTTP error)</error_code>
<error_message>permanent HTTP error</error_message>
</file_xfer_error>
</message>
]]>

The server has gone through a few hours of memtest, and it churns out valid results for all other projects. Just MIP1, it consistently fails due to this. Any idea if this is really a "download" error, or it's something potentially with my hardware? Is the mip1.MIP1_databasev2.zip a single file shared across WUs or downloaded per WU?

Edit: Going into client, the only currently active unit is indeed stuck in "downloading" state. There is plenty of disk space available though. boinc-client log show a flood of these messages, but didn't associate with any WCG project. (WCG is the only project I added for now.)
Mar 11 09:06:19 S8026 boinc[1421]: No protocol specified
Mar 11 09:06:20 S8026 boinc[1421]: No protocol specified
Mar 11 09:06:21 S8026 boinc[1421]: No protocol specified