First, I don't think I fully understand the question. Please excuse me.

I am a Korean user, and when I opened the console box of my apartment, I found that it was connected to the port of each room through the ISP's router.

This router is only used in Korea, so I don't think it will be meaningful to tell you the model name. However, I will write down the spec sheet.

Also, there are two rooms in my house, each of which is connected to a PC through a router that uses Wi-Fi function.

However, only my room is experiencing a slowdown.

CPU
MT7621AT (880Mhz, Duad-Core)
Memory
Flash Memory : 128MB
DDR3 : 256MB
Size
150 x 150 x 38
Power
12V/2A
Interface
WAN 10/100/1000M 1 Port
LAN 10/100/1000M 4 Port
USB 2.0 1 Port
Performance
1000Mbps Full Wire-speed
1,024 US/DS NAT Session
1000Mbps NAT Speed
Wireless 802.11a/b/g/n/ac, wave2
Function
Gateway
Network Address Translation(H/W NAT)
Dynamic Host Configuration Protocol(DHCP)
DMZ
VLAN
Port Forwarding
IGMP Proxy(V1,V2,V3)
Application Level Gateway(ALG)
IPv4/IPv6 (Dual Stack)
Firewall
Wireless LAN
802.11a/b/g/n/ac
WMM(Wi-Fi Multi Media) Wireless QoS
Multiple SSID
Qos
Access Control List(ACL)
802.1p/DSCP/ToS/CoS Marking
Priority Scheduling
L2/L3/L4 Classification/Filtering
Security
64bit/128bit WEP Encryption
WPA/WPA2 (TKIP, AES-CCMP)
Prevent Malicious Packet Strom Control

Forum Discussion

Does orbit work with cable modem that also needs a coaxial cable output?