We are relatively knew to PI and just started seeing an issue that I was wondering if anyone else had seen. We have some users who suddenly started seeing this error  No such host is known when they go to look at the attributes in our Production AF database element hierarchy in Pi System Explorer. Others of us with the same permissions and client version are not seeing the errors at all.
The ones experiencing the issues are able to connect to the DV AF database through PI System Explorer and view those attribute values fine. It is just when they switch to connect to the Production AF database that they start seeing the errors in PI System Explorer.