@ismailakarim VX1800v is a home grade device and it doesn't have any advanced firewall features. Regarding network security check your device user guide Chapter 13 - here and read through this story.

@mike9055 Regarding your first question check this post. Regarding your second question check this feature request (you can upvote it).

@Newbie_Richard Here's a step by step guide on how to connect two computers with an ethernet cable - <https>://www.geeksforgeeks.org/how-to-connect-two-computers-with-an-ethernet-cable/ Every one of...

@Sanikovich I don't know the exact size you're asking for, but here's a video which could give you some ideas in this direction.

@Kevin_Z I believe that Archer C64 shoud be added to the OP list since its latest FW release:

@Barutchiev How about HomeShield - is there any configuration that you've made, especially here: If you did, then try disabling these to exclude that as a potential culprit. If that doesn't help as...