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"Error: Connection closed" When submitting a Tax return to HMRC

Article ID: 2470
Last updated: 08 Jul, 2019

The following message may be seen when trying to file a return to HMRC.


HMRC submission process : connection closed

This has been seen when Kaspersky Endpoint Security for Windows (V.10) was installed. Kaspersky was causing a problem with the "web control" filtering module

If you disable the "Web Control" filtering module it should resolve the problem.

Please Note: TaxCalc advise you to speak to your IT support before disabling or changing any part of your Anti-Virus/intrusion protection.

Related Knowledge Base Articles

Firewall configuration

Firewalls, how to configure

How do I add Proxy Server settings to TaxCalc?

Article ID: 2470
Last updated: 08 Jul, 2019
Revision: 4
Views: 196
This article was:  


Also read
item How do I add Proxy Server settings to TaxCalc?
item How do I configure my firewall software?

Also listed in
folder Tax Return Production -> Filing Online