Can you bridge this with another wifi router , while turning off the wifi of the C4000?

Yes you can. Most people dont know how to get it to work. First, Plug an ethernet cable from a computer or laptop into port 4 on the modem and access the UI. when in the UI, disable all wifi radios (2.4ghz and 5ghz) and reboot modem. When connection resumes, go back into the UI and toggle on transparent bridging. Finally, Plug the WAN cable from your router into Lan port 1 on the modem. Reboot your router and bridge mode should now be working.

Does this modern have both 2.4 ghz and 5 ghz??

Yes. This has both 2.4 GHz and 5 GHz wifi capabilities. I just verified on the modem configuration webpage.

is this model support all DSL variant lines?

It would depend on what you consider all “variants”. It supports CenturyLinks ADSL and DSL. Hope that helps, anything further, I’d call my ISP

Is there a signal booster that works with this device?

Linksys extenders work with this.

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C4000BG CenturyLink Bonded Line Wi Fi DSL Router

Product ID: 329213631

Details

Brand
CenturyLink
Model Name
C4000BG
Special Feature
WPS
Frequency Band Class
Dual-Band
Wireless Communication Standard
802.11ax
Compatible Devices
Laptop

⚡Up to 3 Gbps blazing speed

📶160 MHz dual-band channel support

🔒Advanced WPA3 security protocol

Description

🚀 Upgrade to the C4000BG and leave buffering behind!

FUTURE PROOF SECURITY - WPA3 encryption keeps your network locked down with the latest in wireless security standards.
EFFORTLESS SMART CONTROL - Manage your network easily via app control, with one Wi-Fi SSID for the entire home—simplicity meets power.
BLAZING FAST WI FI 6 SPEEDS - Experience ultra-smooth 4K streaming and lag-free gaming with up to 3 Gbps throughput.
NEXT LEVEL CHANNEL BANDWIDTH - 160 MHz channel support doubles speed potential for compatible devices, leaving slow Wi-Fi in the dust.
SEAMLESS WHOLE HOME COVERAGE - Robust internal antennas deliver strong, dead-zone-free connectivity across your entire 2000 sq ft home.

The CenturyLink C4000BG is a Wi-Fi 6 xDSL router delivering up to 3 Gbps speeds with dual-band 160 MHz channels and 1024-QAM technology. Designed for whole-home coverage, it supports all ADSL/VDSL profiles and features advanced WPA3 security. Ideal for 4K streaming, gaming, and smart home setups, it offers app-based control and a single SSID for seamless connectivity.

Specifications

ASIN	B0977WWVYF
Antenna Location	Gaming, Home
Antenna Type	Internal
Best Sellers Rank	#5,876 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #220 in Computer Routers
Brand	CenturyLink
Compatible Devices	Laptop
Connectivity Protocol	Wi-Fi
Connectivity Technology	Wi-Fi
Control Method	App
Controller Type	App Control
Coverage	Whole Home
Customer Reviews	4.0 out of 5 stars 555 Reviews
Data Transfer Rate	2400 megabits_per_second
Frequency	160 MHz
Frequency Band Class	Dual-Band
Item Dimensions L x W x H	4.7"L x 5.7"W x 8.3"H
Item Weight	2 pounds
LAN Port Bandwidth	1000 Mbps
Manufacturer	GREENWAVE
Maximum Upstream Data Transfer Rate	600 megabits_per_second
Mfr Part Number	C4000BG
Model Name	C4000BG
Model Number	C4000BG
Number of Antennas	2
Number of Items	1
Number of Ports	4
Operating System	RouterOS
Other Special Features of the Product	WPS
Router Firewall Security Level	High
Router Network Type	DSL and Wi-Fi 6
Security Protocol	WPA3
Special Feature	WPS
UPC	604306476295
Unit Count	1 Count
Wi-Fi Generation	Wi-Fi 6
Wireless Communication Standard	802.11ax
Wireless Compability	802.11ax

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