Have a phone you love? Get up to $500 when you switch and bring your phone.
Up to $500 via Verizon e-gift card (sent w/in 8 wks). Port-in & activation of 4G LTE/5G phone on select Unlimited plans req’d. Line must remain active for 45 days. $500 charge back if service cancelled w/in 12 mos or eligibility req's are no longer met. See vzw.com/bring-your-own-device for details.
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The best site I have found for that issue is http://www.portforward.com/ . You just choose the model of your router, then choose the application that is trying to access that port and it gives you step by step with screenshots.