Optimizing certain settings in the TPLink WiFi 802.11ac router settings can prove useful in attaining stable performance.
Operating mode: The router runs in Router mode
1) LAN Settings
Changing the LAN network settings is necessary when multiple router are connected to in a home network, otherwise IP conflicts can occur between multiple routers.
User have option to set the LAN IP from range of 192.168.1.1 to 192.168.255.1
Example of LAN IP:
- 192.168.2.1
- 192.168.5.1
- 192.168.10.1
- 192.168.35.1
- 192.168.67.1
- 192.168.155.1
- 192.168.240.1
If there are four routers in a home working in Router mode then each one should have different LAN IP, so that IP conflict do not occur. Example:
- Router_1 LAN IP: 192.168.5.1
- Router_2 LAN IP: 192.168.23.1
- Router_3 LAN IP: 192.168.87.1
- Router_4 LAN IP: 192.168.155.1
Open Advanced → Network → LAN settings.
- Set LAN IP: 192.168.10.1
- Click Apply .
2) IGMP Settings
Open Advanced → Network → IPTV/VLAN settings.
- IGMP Snooping: Enable
- IGMP Proxy: Enable
- IGMP Version: V3
3) Wireless settings
A) 2.4 GHz Wireless network settings
Open Advanced → Wireless network → Wireless settings.
- Security: WPA/WPA2 Personal
- Version: WPA2-PSK
- Encryption: AES
- Mode: 802.11n only
- Channel: Auto
- Channel Width: 20 MHz
- Transmit Power: High
A) 5 GHz Wireless network settings
Open Advanced → Wireless network → Wireless settings.
- Security: WPA/WPA2 Personal
- Version: WPA2-PSK
- Encryption: AES
- Mode: 802.11ac/n mixed
- Channel: Auto
- Channel Width: Auto
- Transmit Power: High
4) ALG Settings
| Setting | Family | Key Ports / Protocols | Effect When Enabled | Typical Applications | Suggested State (Home / SOHO) |
|---|---|---|---|---|---|
| PPTP Pass-through | VPN helper | TCP 1723, GRE (47) | Tracks GRE tunnels through NAT | Legacy Windows/corporate PPTP VPN | Off unless required (insecure protocol) |
| L2TP Pass-through | VPN helper | UDP 1701 (+500/4500, ESP) | Allows L2TP/IPSec client tunnels | OS-native VPN clients | On if L2TP VPN in use |
| IPSec Pass-through | VPN helper | UDP 500/4500, ESP (50), AH (51) | Enables IPSec NAT-T traversal | Corporate remote-access VPN clients | On (harmless; needed by most VPN clients) |
| FTP ALG | Payload ALG | TCP 21 + dynamic data | Rewrites PORT/PASV; opens data pinholes | Legacy FTP transfers, camera/DVR uploads | Off unless plain FTP misbehaves |
| TFTP ALG | Payload ALG | UDP 69 + ephemeral | Tracks port-switched transfers | Phone provisioning, PXE boot, config backups | Off unless provisioning devices |
| RTSP ALG | Payload ALG | TCP/UDP 554 + RTP/RTCP | Rewrites transport headers; opens media pinholes | Remote IP-camera viewing, legacy streaming | Off unless streams show no media |
| H.323 ALG | Payload ALG | TCP 1720, UDP 1719 + dynamic | Rewrites ASN.1-encoded addresses | Legacy video conferencing, old VoIP gateways | Off |
| SIP ALG | Payload ALG | UDP/TCP 5060(-5061) + RTP/RTCP | Rewrites SDP/headers; opens media pinholes | VoIP phones, softphones, SIP trunks | Off by default; test both states with your provider |
Open Advanced → NAT Forwarding→ ALG settings.
- PPTP Pass-through: Enable
- L2TP Pass-through: Enable
- IPSec Pass-through: Enable
- FTP ALG: Disable
- TFTP ALG: Disable
- RTSP ALG: Disable
- H323 ALG: Disable
- SIP ALG: Disable
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