Zotero has very robust documentation and active forums where users can help resolve most problems. I have listed some common issues and solutions here; if your problem is not on this page, or the solutions listed here do not work, try the Zotero forums.
If the Zotero connector for your browser is not working, try the following:
If this all fails, the problem will likely need to be reported to Zotero. For instructions on how to do this, refer to number 14 at the link below.
Zotero can automatically detect proxies and other authentication systems used to access information. It can also save proxies and automatically route links through them when using Zotero.
This is not recommended. Much like trying to access ISU library resources while using the university VPN, using Zotero's stored proxy information can cause numerous access problems. Make sure to let the librarian know you are using Zotero if you report an access problem.
If you had previously set up Zotero to connect with ISU's proxy and are now unable to access library resources, try disabling the proxy connection in your Zotero preferences.
Some settings in Zotero are hidden, but can still be modified. For example, if you keep losing the Zotero Word popup when trying to add references to a document, there is a hidden setting to toggle this window to always appear on top.
Zotero can directly import from an online Mendeley library. It's not possible to import from a local Mendeley installation on your computer. Use the link below for more information on importing references from Mendeley, including ways to get around the encryption problem.