Internet Explorer
Online filing with HMRC requires Microsoft
Internet Explorer version 5.5 (or higher) with 128 bit
encryption. If you have not got this, it can be
downloaded
free from the Microsoft website.
Firewalls & Anti-virus software
Some Firewalls and Anti-virus software will
prevent your submissions being made.
If you are using a software firewall and are
experiencing problems, check that IRIS Payroll Professional is
not excluded from communicating with the Internet. Most
software firewalls have a control panel where you can allow/deny
access to the Internet for particular programs. If the
program “XMLInterface.exe” is blocked, then IPP will not be able to
file your return.
The program communicates with the HMRC
gateway on port 443, also known as SSL or Secure HTTP. If
this port is blocked then the process will fail. Any firewall
hardware/software must be configured to allow communication using
this port.
While we would not recommend using a machine
connected to the Internet without some form of security,
occasionally the only way of determining what is causing the
problem is to temporarily disable a firewall (if possible) to check
if returns can then be submitted for processing.
If submitting the returns works when the
firewall is disabled, then it is likely that the firewall is
blocking this 'secure' communication and should be re-configured
accordingly. Refer to your firewall supplier for more
information.
Anti-virus software can also prevent your
submission from being made. If you receive an error message
you will need to consider disabling the software whilst your return
is being submitted. We regret that we are unable to provide
you with further support/advice concerning your Internet
security/firewall/anti-virus software. You should refer to the
documentation supplied by your provider.
