isue network about internet with avast- internet - security 5

[EN_AMRR]

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can help me
English is hard sorry
my issue is
i have to computers
first have adsl internet
second computer can access internet from first computer no problem
but will install avast security 5 in first computer  the second computer is can not access internet
with the icon internet next icon network
but will open explorer Carnot access and will am stop avast security in first computer (server) the second computer(client)is can access browser internet

[wpn]

you have to allow the software that is sharing your internet connection to go through the avast firewall, open the ports