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Jack Voss 1Jack Voss 1 

After my administrator changed the domain of our salesforce the .net application that we use to update the data is no longer able to login.

I tried updated the Secuity code for the account.  We are binding to "https://www.salesforce.com/services/Soap/u/25.0" that has not changed.  We are using TLS 1.2 or 1.1 ..  The password and account name is correct.  What else could be wrong.  It literally happened after she changed the domain.  
 
Best Answer chosen by Jack Voss 1
Tony TannousTony Tannous
Hello
try this Url for production https://login.salesforce.com/services/Soap/u/25.0

For sandbox :https://test.salesforce.com/services/Soap/u/25.0

Regards

All Answers

Tony TannousTony Tannous
Hello
try this Url for production https://login.salesforce.com/services/Soap/u/25.0

For sandbox :https://test.salesforce.com/services/Soap/u/25.0

Regards
This was selected as the best answer
Jack Voss 1Jack Voss 1
That seems to have worked. 

Thank you very much. 
Tony TannousTony Tannous
Glad to hear that , can you please mark the answer as solved.
Regards