Using wins 7 64 Pro on a desktop and Windows Live 2012 mail using it to down load 2 emails identities.  This has worked fine for the past two months since upgrade and I have the same setup on my Laptop running Win 7 HE.  Only when it does the send/receive emails, the second identity has developed this error message as above.  I have changed no settings and have double checked all settings.  This works fine on the laptop. 

I have done a system restore on the desktop which has not solved the problem.  Can not see that this is ISP problem as it works fine on the laptop with same settings.