I've been trying to install a bunch of packages today and yesterday with BiocManager::install and that fails. I've been getting the following errors:

> BiocManager::install('glmGamPoi')
Bioconductor version 3.14 (BiocManager 1.30.19), R 4.1.0 (2021-05-18)
Installing package(s) 'glmGamPoi'
also installing the dependency ‘SummarizedExperiment’

trying URL 'https://bioconductor.org/packages/3.14/bioc/src/contrib/SummarizedExperiment_1.24.0.tar.gz'
Content type 'application/octet-stream' length 1524667 bytes (1.5 MB)
==================================================
downloaded 1.5 MB

trying URL 'https://bioconductor.org/packages/3.14/bioc/src/contrib/glmGamPoi_1.6.0.tar.gz'
Error in download.file(url, destfile, method, mode = "wb", ...) : 
  cannot open URL 'https://bioconductor.org/packages/3.14/bioc/src/contrib/glmGamPoi_1.6.0.tar.gz'
In addition: Warning message:
In download.file(url, destfile, method, mode = "wb", ...) :
  cannot open URL 'https://mghp.osn.xsede.org/bir190004-bucket01/archive.bioconductor.org/packages/3.14/bioc/src/contrib/glmGamPoi_1.6.0.tar.gz': HTTP status was '503 Service Unavailable'
Warning in download.packages(pkgs, destdir = tmpd, available = available,  :
  download of package ‘glmGamPoi’ failed
* installing *source* package ‘SummarizedExperiment’ ...
** using staged installation
** R
** inst
** byte-compile and prepare package for lazy loading
^C
Execution halted

* removing ‘/usr/local/lib/R/site-library/SummarizedExperiment’

I have glmGamPoi here as an example, but it's also been failing randomly for other packages. I'm building the image on a remote Linux VM. But I also checked the links in my local browser and these give me 503 error ~ 1 of 10 times. So it's not a firewall issue or anything like that.

I'm clueless how to solve it. Would appreciate any suggestions.