I'm having network connectivity issues working with my TPLink router combined with my switch. I've had this solution in place for the past 5 months working pretty much flawlessly. I'm connected to the network via high-speed Fiber Optic. My original switch was a 8 port Netgear GS308v3. About a month ago, I suddenly found my conneced systems (all wired and wireless devices) all going offline from the network. On troubleshooting, I found all problems go away when disconnecting my Netgear switch. I can literally watch the shown wired connections on the TPLink admin site go from 4 to 0 and my internet show as offline by connecting up the switch. I remove the switch, all remaining wired connections show up, and internet returns. At this point, I assumed I maybe had a bad switch so I replaced it - this time with a LinkSys 8 port hub (SE3008v2). I hook everything up and everything runs fine for 3 weeks. Suddenly, I have the same issue with my new switch. The same exact troubleshooting reveals that hooking up the switch causes a disruption. Disconnecting the switch restores the network for all remaining connected and wireless devices.

I'm frankly at a loss. Do I just have a bad TPLink router?