monterey 12.3.1 will not install

This is a "point update", with my results. I am on a wired enet connection. Other computers are connecting fine. I have plenty of space on my drive. I'm still in safe mode. Any thoughts? It can't be Apple server services, can it? I tried the below 3 times with the same result:

Last login: Sun Apr  3 13:24:50 on ttys000

steve@Stephens-MacBook-Pro ~ % sudo softwareupdate -i -a -R

Password:

Software Update Tool

Finding available software

Downloading macOS Monterey 12.3.1

Downloading: 100.00%

Failed to download & prepare update: Error Domain=SUOSUErrorDomain Code=201 "The software update download failed. Please check your network connection and try again." UserInfo={NSLocalizedRecoverySuggestion=An error occurred while downloading the selected updates. Please check your internet connection and try again., NSLocalizedDescription=The software update download failed. Please check your network connection and try again., NSUnderlyingError=0x60000269c090 {Error Domain=SUMacControllerError Code=7700 "[SUMacControllerErrorDownloadFailed=7700] Failed to perform Download operation: [SUMacControllerError:7704_1_BOSErrorDomain:304_2_PKDownloadError:3_3_NSURLErrorDomain:-1001_4_kCFErrorDomainCFNetwork:-1001]" UserInfo={NSLocalizedDescription=The software update download failed. Please check your network connection and try again., SUMacControllerErrorIndicationsMask=0, NSDebugDescription=[SUMacControllerErrorDownloadFailed=7700] Failed to perform Download operation: [SUMacControllerError:7704_1_BOSErrorDomain:304_2_PKDownloadError:3_3_NSURLErrorDomain:-1001_4_kCFErrorDomainCFNetwork:-1001], NSUnderlyingError=0x60000269c120 {Error Domain=SUMacControllerError Code=7704 "[SUMacControllerErrorDownloadBridgeOSFailed=7704] failed to download bridgeOS package specifiers: [BOSErrorDomain:304_1_PKDownloadError:3_2_NSURLErrorDomain:-1001_3_kCFErrorDomainCFNetwork:-1001]" UserInfo={NSLocalizedDescription=The T2 software update could not be downloaded. Please check your network connection and try again., SUMacControllerErrorIndicationsMask=0, NSDebugDescription=[SUMacControllerErrorDownloadBridgeOSFailed=7704] failed to download bridgeOS package specifiers: [BOSErrorDomain:304_1_PKDownloadError:3_2_NSURLErrorDomain:-1001_3_kCFErrorDomainCFNetwork:-1001], NSUnderlyingError=0x60000269c1b0 {Error Domain=BOSErrorDomain Code=304 "An error occurred downloading one or more packages for the update product." UserInfo=0x600003d9c1c0 (not displayed)}}}}}}

I ended up using Recovery Mode (reboot with Command-R) and replacing the OS to take it to 12.3.1. I shouldn't have to use that.

Sigh.

This is solved, but not in a good way.

I have not used beta OS software. It's against my religion.

There a lot of room on the drive.