I've been using static IP when I first started using Cisco RV340 since yesterday and I got no problem with it.
But when I first turned-on my computer the next day it was not able to connect to the internet nor open the web GUI of the router.
I thought my network connection just malfunctioned so I unplugged my network cable but it doesn't fix the problem.
I restarted Cisco RV340, still the problem is the same. And then I thought that the whole network may also be having an internet connection.
But when I looked at a one computer's monitor, I saw that it had an internet. And just to confirm my suspicion I connected to another computer and check if it has an internet connection and it did have connection.
Also, I was wondering if the whole network is having connection problem, users should be calling me now, but no one is calling.
I thought I should restart my computer. But on second thought I decided first to change my Ethernet settings from Static to Dynamic.
And to my surprise it connected to Cisco RV340 and to the internet and when I returned my Ethernet connection to Static all became well.
What happened is somewhat weird for me as of the moment. So, to help me understand the problem I tried to look at my computer's Event Viewer.
Just I expected my computer's static IP address is conflicting with another device. To avoid this issue in happening again in the future I configured Cisco RV340 to assign the IP address exclusively to my computer.