I am getting this error when trying to login into Salesforce using the Excel Connector.  I have tried logging in by adding my token to my password and that has not worked.

I am receiving the error below:

Error Generated by request::SFWininet::Send::HttpEndRequest
Win32Error
The connection with the server was reset

ExceptionCode : 5103

Regarding salesforce communities custom theme developed using aura component. I wish to change custom theme logo to other image.

To see the current logo click here (https://ibb.co/QQKnzWB) 
but wish to change this, 
need help

i had gone through developer guide and other things, i need the a small example what really the metadata is with an example , of simple 
thanks and regards

Hi developers,

                        how can we change the default Salesforce CRM UI.

defaultly some look and feel is observing in CRM but is possible to change as we customize some social networks themes. How can we? plz suggest options.