Running BitCoin Core v 0.17.1 - should I open ports on the router/firewall?

I'm running Bitcoin Core 24/7 to support BTC and the community. I read a post that most routers block some port that is needed for the network.

I keep my Asus RT-AC66U's firmware updated but that is the maximum I know about routers and ports.

Should I do something with my router settings?

Advice would be most appreciated. :)

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submitted by /u/Tiny_Frog
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