Same, here, its been down for over 7 days now, I myself also use the documentation as a reliable source of information for my students, (I actually have the documentation I provide the students backed up offline in case this happens, therefore I'm not strongly affected by this issue). However, the source documentation "Manual" for an industry standard software shouldn't be down for so long. Its important to have a contingency "a mirror server or an offline solution" with the documentation of the software. Not providing users with a prompt solution to this issue can negatively affect how users perceive the software/company, where it may come across as unprofessional and unreliable.
