Alma9 client unmont /cvmfs Frequently

We are migrating the infrastructure to alma9. The squid servers have been migrated without problems and are functioning.
packages are:

cvmfs-libs-2.12.7-1.el9.x86_64
cvmfs-config-default-2.1-1.noarch
cvmfs-2.12.7-1.el9.x86_64
There is no firewall between the WNs and the squid servers, but every so often, the cvmfs unmounts. In the logs, we see these warnings:

switching proxy from 10.10.0.79:3128/ (squid02.ifca.es) to 10.10.0.78:3128/ (squid01.ifca.es). Reason: geosort [Current host: cvmfs-stratum-one.cern.ch:8000/cvmfs/cms.cern.ch] Mar 21 09:39:33 wngrid031 cvmfs2[974200]: (cms.cern.ch) (manager ‘external’)

Moved to Alma9 client unmont /cvmfs Frequently · Issue #3799 · cvmfs/cvmfs · GitHub