It been a constant annoyance to me loosing access to my afp mounted folders every time my laptop switches to and from my home wifi.
The primitive workaround have usually been to restart my macbook but this is even more annoying… So… what to do???
After a few minutes of searching the internet I found a first hint to verify the permissions on /Volumes:
sudo chmod 775 /Volumes
Should this not solve the problem it is possible that restarting Finder will solve the issue. This can be done by pressing the Option key while double clicking the Finder icon and then selecting “Relaunch”.