No matter what I try I can't seem to get TCP ports to open. I can however open the UDP ports. Any time I try to open TCP ports my internet loses connectivity and I have to switch back else I cannot get online. Router is D-Link DIR-615. Any ideas?
Resetting the router and making sure it's on the latest firmware is a good idea. But if that doesn't work, you can find the manual for the D-Link DIR-615 at
If the answer to opening the TCP ports isn't too well laid out in the manual, I would recommend shooting the D-Link team a quick message.
Try resetting it to factory defaults and check for a firmware update to start
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