Joined May 2006
L5: Journeyman
Forum Thread
Routers - I would appreciate any help. I know this is a bit long
January 19, 2026 at
03:29 PM
I need some help setting up routers and am a bit confused if I'm doing the right thing. I have Xfinity Voice, so my main modem is a modem and router combo.
And it is an ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router with an 800 mbps Xfinity plan.
Then upstairs I have an access point with a TP-Link AC1200 WiFi Router (Archer A54)—a dual-band router. My house is about 2500 sq ft
I recently added another access point: a TP-Link AXE5400 Tri-Band WiFi 6E Router (Archer AXE75). This is located about 25 ft away in the back of the house. I have a detached workshop/shed and could not get a good wifi signal. The total is about 60 ft from my main Arris router. My long-term plan was to maybe add a wired connection out there. I decided to try this way, and to my surprise, this seems to be working well for the shed. On this router only, I notice I have to pick 2.4g or 5g when I sign on. 2.4g seems to be better most of the time. Since the signal strength seems to vary between the two.
I asked ChatGPT if I could somehow do auto-switching somehow with my laptop or iPhone when out in the shed. It recommended a completely different setup.
I am a little worried I will just make a mess of things if I make the changes. I am older now and don't understand tech as well.
The plan is to not use the main router for wifi at all. Just use it as a modem to have the VoIP phone line. And it is my modem. The question is, will this work and be a good plan? Also later, would I just be better off getting a new modem? Then maybe another router and just use OOMA. I would like to keep things as dependable and simple as I can, if possible.
Thanks for any suggestions.
Below is what ChatGPT recommended.
Arris SBG2482AC + TP-Link AX5400 + TP-Link AC1200 (wired APs)
GOAL
• One Wi-Fi name
• Automatic 2.4 ↔ 5 GHz switching
• Seamless roaming
• Stable iPhone behavior
• Keep Xfinity phone service working
________________________________________
1️ ARRIS SBG2482AC (Main Modem + Router + Phone)
Purpose: Internet + DHCP + phone
Wi-Fi role: ❌ Disabled
Menu Path
1. Open browser → http://192.168.0.1
2. Login
3. Wireless
o 2.4 GHz → Disable
o 5 GHz → Disable
4. LAN Setup
o DHCP → Enabled
5. Advanced
o Bridge Mode → Disabled
✅ Phone service stays active
✅ Internet routing stays active
❌ Arris Wi-Fi radios OFF
________________________________________
2️ TP-Link AX5400 (Primary Access Point – Best Wi-Fi)
Placement: Central part of house
Purpose: Main Wi-Fi coverage
Menu Path
1. Browse to http://tplinkwifi.net or AP IP
2. Advanced
3. Operation Mode
o Select Access Point
o Reboot
Wi-Fi Settings
Advanced → Wireless
Smart Connect: ✅ ON
SSID: Same name you want everywhere
Password: Same everywhere
Security: WPA2-PSK or WPA2/WPA3 Mixed
Channels (3,000 sq ft tuned)
• 2.4 GHz
o Channel: 1
o Width: 20 MHz
• 5 GHz
o Channel: 36–48
o Width: 80 MHz
________________________________________
3️TP-Link AC1200 (Secondary Access Point)
Placement: Far end of house (~50 ft from Arris)
Purpose: Coverage extension
Menu Path
1. Login to AC1200 admin page
2. Operation Mode
o Access Point
o Reboot
Wi-Fi Settings
Smart Connect: ❌ OFF (older model = more stable manually)
SSID: SAME as AX5400
Password: SAME
Security: SAME
Channels (must be different)
• 2.4 GHz
o Channel: 11
o Width: 20 MHz
• 5 GHz
o Channel: 149–161
o Width: 80 MHz
Optional (if available)
• Transmit Power: Medium
________________________________________
4️ CHANNEL PLAN (IMPORTANT)
Band AP Channel
2.4 GHz AX5400 1
2.4 GHz AC1200 11
5 GHz AX5400 36–48
5 GHz AC1200 149–161
✔️ No overlap
✔️ Clean roaming
✔️ Minimal interference
________________________________________
5️ iPHONE CLEANUP (DO THIS ONCE)
1. Settings → Wi-Fi
2. Forget:
o Old 2.4G names
o Old 5G names
o Any Arris Wi-Fi SSIDs
3. Join only the new unified SSID
4. Wait 30 seconds
________________________________________
✅ WHAT YOU'LL NOTICE AFTER
• iPhone auto-switches bands silently
• No manual 2.4 / 5 GHz switching
• Stronger signal room-to-room
• No "sticky" connections
• Phone service unchanged
________________________________________
FINAL NOTES (Important)
• Distance from Arris does not matter (Ethernet backhaul)
• Arris stays because of phone service
• TP-Links do all Wi-Fi
• This behaves like a mesh — without buying one
• End chat
Also I am not against buying whatever I need. Just would like to wait for a slick deal. Thanks
And it is an ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router with an 800 mbps Xfinity plan.
Then upstairs I have an access point with a TP-Link AC1200 WiFi Router (Archer A54)—a dual-band router. My house is about 2500 sq ft
I recently added another access point: a TP-Link AXE5400 Tri-Band WiFi 6E Router (Archer AXE75). This is located about 25 ft away in the back of the house. I have a detached workshop/shed and could not get a good wifi signal. The total is about 60 ft from my main Arris router. My long-term plan was to maybe add a wired connection out there. I decided to try this way, and to my surprise, this seems to be working well for the shed. On this router only, I notice I have to pick 2.4g or 5g when I sign on. 2.4g seems to be better most of the time. Since the signal strength seems to vary between the two.
I asked ChatGPT if I could somehow do auto-switching somehow with my laptop or iPhone when out in the shed. It recommended a completely different setup.
I am a little worried I will just make a mess of things if I make the changes. I am older now and don't understand tech as well.
The plan is to not use the main router for wifi at all. Just use it as a modem to have the VoIP phone line. And it is my modem. The question is, will this work and be a good plan? Also later, would I just be better off getting a new modem? Then maybe another router and just use OOMA. I would like to keep things as dependable and simple as I can, if possible.
Thanks for any suggestions.
Below is what ChatGPT recommended.
Arris SBG2482AC + TP-Link AX5400 + TP-Link AC1200 (wired APs)
GOAL
• One Wi-Fi name
• Automatic 2.4 ↔ 5 GHz switching
• Seamless roaming
• Stable iPhone behavior
• Keep Xfinity phone service working
________________________________________
1️ ARRIS SBG2482AC (Main Modem + Router + Phone)
Purpose: Internet + DHCP + phone
Wi-Fi role: ❌ Disabled
Menu Path
1. Open browser → http://192.168.0.1
2. Login
3. Wireless
o 2.4 GHz → Disable
o 5 GHz → Disable
4. LAN Setup
o DHCP → Enabled
5. Advanced
o Bridge Mode → Disabled
✅ Phone service stays active
✅ Internet routing stays active
❌ Arris Wi-Fi radios OFF
________________________________________
2️ TP-Link AX5400 (Primary Access Point – Best Wi-Fi)
Placement: Central part of house
Purpose: Main Wi-Fi coverage
Menu Path
1. Browse to http://tplinkwifi.net or AP IP
2. Advanced
3. Operation Mode
o Select Access Point
o Reboot
Wi-Fi Settings
Advanced → Wireless
Smart Connect: ✅ ON
SSID: Same name you want everywhere
Password: Same everywhere
Security: WPA2-PSK or WPA2/WPA3 Mixed
Channels (3,000 sq ft tuned)
• 2.4 GHz
o Channel: 1
o Width: 20 MHz
• 5 GHz
o Channel: 36–48
o Width: 80 MHz
________________________________________
3️TP-Link AC1200 (Secondary Access Point)
Placement: Far end of house (~50 ft from Arris)
Purpose: Coverage extension
Menu Path
1. Login to AC1200 admin page
2. Operation Mode
o Access Point
o Reboot
Wi-Fi Settings
Smart Connect: ❌ OFF (older model = more stable manually)
SSID: SAME as AX5400
Password: SAME
Security: SAME
Channels (must be different)
• 2.4 GHz
o Channel: 11
o Width: 20 MHz
• 5 GHz
o Channel: 149–161
o Width: 80 MHz
Optional (if available)
• Transmit Power: Medium
________________________________________
4️ CHANNEL PLAN (IMPORTANT)
Band AP Channel
2.4 GHz AX5400 1
2.4 GHz AC1200 11
5 GHz AX5400 36–48
5 GHz AC1200 149–161
✔️ No overlap
✔️ Clean roaming
✔️ Minimal interference
________________________________________
5️ iPHONE CLEANUP (DO THIS ONCE)
1. Settings → Wi-Fi
2. Forget:
o Old 2.4G names
o Old 5G names
o Any Arris Wi-Fi SSIDs
3. Join only the new unified SSID
4. Wait 30 seconds
________________________________________
✅ WHAT YOU'LL NOTICE AFTER
• iPhone auto-switches bands silently
• No manual 2.4 / 5 GHz switching
• Stronger signal room-to-room
• No "sticky" connections
• Phone service unchanged
________________________________________
FINAL NOTES (Important)
• Distance from Arris does not matter (Ethernet backhaul)
• Arris stays because of phone service
• TP-Links do all Wi-Fi
• This behaves like a mesh — without buying one
• End chat
Also I am not against buying whatever I need. Just would like to wait for a slick deal. Thanks
About the OP
4 Comments
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If that is correct then I would use all one SSID and have one Router and the others in Extender mode.
You should probably use an app like Wifi Analyzer to see what frequency has the least interference. you might be able to just set the channel to Auto. Ooma will save you some $$ unless Comcast offers you a killer deal in the Denver area they are advertising. Sixty Five bucks for 1Gb with a 5 year guarantee.
You'd typically have either a check box to use the same SSID for the 2.4GHz and 5GHz networks or can just set both to the same.
As Komondor points out, the best results will likely come from manually setting the wifi channels on the different routers / routers functioning as access points.
How are the extra routers connected to the main one? With wired ethernet, as wireless repeaters, or using some other medium via G.hn, HomePNA, HomePlug AV2, etc.?
If that is correct then I would use all one SSID and have one Router and the others in Extender mode.
You should probably use an app like Wifi Analyzer to see what frequency has the least interference. you might be able to just set the channel to Auto. Ooma will save you some $$ unless Comcast offers you a killer deal in the Denver area they are advertising. Sixty Five bucks for 1Gb with a 5 year guarantee.
Quote "I would use all one SSID and have one router and the others in extender mode." Would I set this up the same way as above? Is it the same as Chatgpt?
Thanks
Here with xfinity. I have the triple play plan. Which they give you the phone service. But with TV and everything it is about $200.00. That is next on my list to look at better.
Thanks
You'd typically have either a check box to use the same SSID for the 2.4GHz and 5GHz networks or can just set both to the same.
As Komondor points out, the best results will likely come from manually setting the wifi channels on the different routers / routers functioning as access points.
How are the extra routers connected to the main one? With wired ethernet, as wireless repeaters, or using some other medium via G.hn, HomePNA, HomePlug AV2, etc.?
Quote "I would use all one SSID and have one router and the others in extender mode." Would I set this up the same way as above? Is it the same as Chatgpt?
Thanks