Some Online games wont let me Connect?

For some unknown reason some of my online games wont let me connect online like my elder scroll online and I just downloaded this game called CODW it not my internet I think it because of my computer and there a setting that not allowing me to connect to those games most of my other games let me connect like SWG Legend LOTRO.

Update:

My Elder Scroll online was working 4 months ago but for some reason it stoped working for me please help I tried reseting my Router and everything I either think there a setting or file in my computer or my antivirus preventing me from playing my online games im using Kaspersky Internet 

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