No network list on explorer tree

[5566seahawk]

Changed new tp-link router for one from Charter. T-p would not link to my Samsung Smart TV. Charter's connected right away. Now I have noticed that my view in Explorer only shows my current PC. I have two other win 7 PC's and a win 10. All of them showed up on the tree with tp link router. I just received an old ASUS Chromebook and it cannot connect to the Charter in Wi-Fi. I rebooted the modem and router to no effect.
All of the PC's are hardwired expect ASUS. Any ideas or do I call Charter back?
PS. My Samsung TV is not in the picture either.

 

[samuria]

Run this scanner on all pcs NetBScanner - NetBIOS scanner
does it see other pcs and which is master browser. Whats to router specs if it duel band and AC and you have old wireless adapters it may not see old b or n type and wont see 5 g

 

[Hearsepilot]

Is your new tp-link set to modem mode or Router mode? Did you assign each device a static IP or are they set to DHCP?