Gotoassist does not connect

can those 2 machines connect to normal websites in on the internet?

Please post a screenshot of log viewer when the go2assist program is started. The packets we see in your first screenshot belong to an existing session which has not been established for the XG.

Most likely you will need web exceptions to except SSL and and other checks for the FQDN listed here. https://support.logmeininc.com/gotoassist-remote-support/help/whitelisting-and-firewall-configuration

Also, do you have enabled the firewall rules for the ports listed there?

Test with a FW rule on top that allows ANY service for one of the computers towards the internet. Disable Webfiltering on that rule. It will probably work.

Yes, everything else works fine on both PCs. 

I had this rule for a while now.. just changed the format of websites URL. Is the attached screenshot correct way of entering URLs?

I have below rule that I think should not block Gotoassist

Yes, everything else works fine on both PCs. 

I had this rule for a while now.. just changed the format of websites URL. Is the attached screenshot correct way of entering URLs?

I have below rule that I think should not block Gotoassist

Hi,

Looks like based off the link posted above, there are a bunch more URLs that need to be added for Goto Assist which was purchased by Log Me In a few years ago.

For your expressions if you follow: ^([A-Za-z0-9.-]*\.)?example\.com/ this will match all subdomains of example.com. I dont think you need to have ?/ at the end of each one. 

To avoid removing the current rules and test this option, just make a copy of the exception and try the new expression i mentioned.

Hope this helps

Yes, I added other URLs too. I will give it a try Monday. Thanks a lot to both responses.

        ^([A-Za-z0-9.-]*\.)?openvoice\.com\.?/
        ^([A-Za-z0-9.-]*\.)?accounts\.logme\.in\.?/
        ^([A-Za-z0-9.-]*\.)?joingotomeeting\.com\.?/
        ^([A-Za-z0-9.-]*\.)?cdngetgo\.com\.?/
        ^([A-Za-z0-9.-]*\.)?logmein\.eu\.?/
        ^([A-Za-z0-9.-]*\.)?clientstream\.launchdarkly\.com\.?/
        ^([A-Za-z0-9.-]*\.)?api\.filepicker\.io\.?/
        ^([A-Za-z0-9.-]*\.)?getgoservices\.net\.?/
        ^([A-Za-z0-9.-]*\.)?logmein\.com\.?/
        ^([A-Za-z0-9.-]*\.)?internapcdn\.net\.?/
        ^([A-Za-z0-9.-]*\.)?logmeininc\.com\.?/
        ^([A-Za-z0-9.-]*\.)?getgo\.com\.?/
        ^([A-Za-z0-9.-]*\.)?gotomeeting\.com\.?/
        ^([A-Za-z0-9.-]*\.)?gotoconference\.com\.?/
        ^([A-Za-z0-9.-]*\.)?expertcity\.com \.?/
        ^([A-Za-z0-9.-]*\.)?internap\.net\.?/
        ^([A-Za-z0-9.-]*\.)?gotoroom\.com\.?/
        ^([A-Za-z0-9.-]*\.)?getgoservices\.com\.?/
        ^([A-Za-z0-9.-]*\.)?getgocdn\.com\.?/
        ^([A-Za-z0-9.-]*\.)?goto-rtc\.com\.?/
        ^([A-Za-z0-9.-]*\.)?filestackapi.com \.?/
        ^([A-Za-z0-9.-]*\.)?gotomeet\.at\.?/
        ^([A-Za-z0-9.-]*\.)?raas\.io\.?/

you will need to add some URL to the above list. This is what we added for GotoMeeting