Comment by bombcar
2 years ago
I had one recently - old Nintendo switch; worked fine when docked, couldn't get an internet connection on wifi.
Turns out it had been so long that the wifi MAC was picking up a DHCP address that was blocked at the firewall; the dock had its own MAC so it got a good address.
Were you using an Ethernet adapter? The original switch dock has a DisplayPort to HDMI adapter and USB hub. It doesn’t do anything with networking. The OLED dock adds ethernet (and therefore a second MAC).
It was the old switch in the new dock; which was why I was going insane. Both worked in the dock, but only the OLED worked outside the dock.
Had to sit down and think about it for awhile before I realized it had to be the firewall blocking access somehow.
Haha, your OP said “old”, probably autocorrected. I thought, “OLED is new, not old!”