Even though the errors may look the same/similar it could be different root causes. Could you help us try to gather some more details here?
For these two users are they unable to use Local Connect at all for pulling/pushing? Or is it only specific sites?
Did it work until a specific update or change?
Is everyone working from different locations or sharing an office network?
Does anyone utilize VPNs?
Keep us posted and we’d be happy to help further!