I cannot connect to my work environment

I use AVG Ultimate (Dutch) and I cannot connect to my work environment.
For working home i needed to install citrix receiver 4.9 and netscaler gateway plug-in, so i did.

Hello Johnny,
I regret for the inconvenience caused.  Please check if your AVG firewall is configured with below recommended settings or not.

Open AVG Internet Security->Menu->Settings->Components->Firewall->Customize->Network Profile and change it to Private.
Open AVG Internet Security->Menu->Settings->Components->Firewall->Customize->Policies->System Rules and set all rules to "Enabled".

Make sure the above settings are applied and let us know if the issue persist.