{"product_id":"greenwave-c4000lg","title":"GreenWave C4000LG CenturyLink WiFi 6 Single Line xDSL Modem Router","description":"\u003cdiv class=\"mg-product-desc\"\u003e\n\n\u003cdiv class=\"mg-bulk-callout\"\u003e\n\u003cp\u003e\u003cstrong\u003eBulk Discount:\u003c\/strong\u003e Buy 10, get 10% off, applied automatically at checkout. \u003ca href=\"https:\/\/www.modemguides.com\/collections\/bulk-sale-buy-10-get-10-off\"\u003eBrowse bulk deals\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe renewed \u003cstrong\u003eGreenWave C4000LG\u003c\/strong\u003e is a WiFi 6 modem router combo built for CenturyLink and Brightspeed DSL internet. One device handles both the DSL connection and your home WiFi, replacing the gateway you rent from your provider and ending the monthly equipment fee. Every unit is Grade A Certified Renewed, professionally tested, and backed by our 90-day full coverage warranty.\u003c\/p\u003e\n\n\u003ch2\u003eKey Takeaways\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi 6 modem router combo\u003c\/strong\u003e with four Gigabit Ethernet ports and a single DSL line port supporting all ADSL and VDSL profiles up to 17a.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproved for CenturyLink\u003c\/strong\u003e and used on Brightspeed DSL service in former CenturyLink territories (confirm with your provider before ordering).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces rented gateway equipment\u003c\/strong\u003e, which can save $120 or more per year depending on your plan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade A Certified Renewed\u003c\/strong\u003e, tested and cleaned, with a 90-day full coverage warranty and USA-based support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIs the GreenWave C4000LG Compatible with My Internet Provider?\u003c\/h2\u003e\n\u003cp\u003eThe C4000LG is designed and approved for \u003cstrong\u003eCenturyLink\u003c\/strong\u003e DSL internet service. It is also used on \u003cstrong\u003eBrightspeed\u003c\/strong\u003e DSL in the 20 states where Brightspeed took over CenturyLink's copper network. Because it supports every ADSL and VDSL profile up to 17a, it works across standard CenturyLink and Brightspeed DSL speed tiers. For setup help, see our \u003ca href=\"https:\/\/www.modemguides.com\/blogs\/modemguides-blog\"\u003eCenturyLink activation guide\u003c\/a\u003e or \u003ca href=\"https:\/\/www.modemguides.com\/blogs\/modemguides-blog\"\u003eBrightspeed activation guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe C4000LG does \u003cstrong\u003enot\u003c\/strong\u003e work with cable internet (Xfinity, Spectrum, Cox), fiber-to-the-home service, satellite, or 5G home internet. It connects through a telephone-style DSL wall jack, not a coaxial jack. Before ordering, confirm the C4000LG is approved for your specific plan and address with your provider.\u003c\/p\u003e\n\n\u003ch2\u003eWiFi 6 Performance on DSL\u003c\/h2\u003e\n\u003cp\u003eThe C4000LG pairs its DSL modem with a WiFi 6 (802.11ax) router, a meaningful upgrade over the WiFi 5 gateways many DSL customers are still renting. WiFi 6 handles more simultaneous devices with less congestion, which keeps 4K streaming, video calls, and gaming stable even in busy households. Four Gigabit Ethernet ports cover wired connections for desktops, consoles, and smart TVs, and a single SSID covers your whole home so devices roam without switching networks.\u003c\/p\u003e\n\n\u003ch2\u003eGreenWave C4000LG Specs at a Glance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle line xDSL (ADSL and VDSL profiles up to 17a)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiFi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWiFi 6 (802.11ax), 2-stream, wireless speeds up to 3 Gbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Download Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 1 Gbps, depending on plan and line quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEthernet Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4x Gigabit Ethernet LAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSecurity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFirewall, WPA2 encryption, MAC address filtering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNetwork Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDynamic QoS, parental controls, guest network, single SSID\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManagement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWeb-based setup wizard and admin interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 x 11 x 8 in, 4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrade A Certified Renewed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSave on Modem Rental Fees\u003c\/h2\u003e\n\u003cp\u003eCenturyLink and Brightspeed both charge a monthly lease fee for the gateway they supply, typically around $15 per month. At $180 a year, this renewed C4000LG pays for itself in about six months, and everything after that is savings. Check your current bill to see exactly what you are paying for equipment. If your rented gateway is aging or dropping connections, our guide on \u003ca href=\"https:\/\/www.modemguides.com\/blogs\/modemguides-blog\/how-long-do-modems-last-signs-to-replace\"\u003ehow long modems last\u003c\/a\u003e covers the signs it is time to replace it.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGreenWave C4000LG DSL modem router (Renewed)\u003c\/li\u003e\n\u003cli\u003eEthernet cable\u003c\/li\u003e\n\u003cli\u003ePower supply cable\u003c\/li\u003e\n\u003cli\u003eDSL \/ VoIP cable\u003c\/li\u003e\n\u003cli\u003eOnline installation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Set Up the GreenWave C4000LG\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eConnect the DSL cable from your telephone wall jack to the DSL port on the C4000LG.\u003c\/li\u003e\n\u003cli\u003ePlug in the power supply and wait for the status lights to stabilize.\u003c\/li\u003e\n\u003cli\u003eConnect a computer or phone to the default WiFi network printed on the device label, or use the included Ethernet cable.\u003c\/li\u003e\n\u003cli\u003eFollow the web-based setup wizard to complete activation with your CenturyLink or Brightspeed account.\u003c\/li\u003e\n\u003cli\u003eSign in to the admin interface to customize your WiFi name, password, and parental controls.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eWhy Buy the GreenWave C4000LG from ModemGuides\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e90-day full coverage warranty\u003c\/strong\u003e on every modem we sell, including this renewed C4000LG.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSA-based customer service and tech support\u003c\/strong\u003e staffed by people who actually know networking gear, not a generic call center.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast shipping from US warehouses\u003c\/strong\u003e, so most orders arrive in 1 to 3 business days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurated, ISP-compatible inventory:\u003c\/strong\u003e we only stock modems and routers that are approved on real plans, with clear compatibility notes on every listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetup and troubleshooting guides\u003c\/strong\u003e available across ModemGuides.com to help you get online without the runaround.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall US business\u003c\/strong\u003e that puts customer experience first, with real humans answering your questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eGreenWave C4000LG Frequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs the GreenWave C4000LG compatible with CenturyLink?\u003c\/h3\u003e\n\u003cp\u003eYes. The C4000LG is approved for CenturyLink DSL internet service and supports all ADSL and VDSL profiles up to 17a, covering standard CenturyLink DSL speed tiers.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the GreenWave C4000LG work with Brightspeed?\u003c\/h3\u003e\n\u003cp\u003eThe C4000LG is used on Brightspeed DSL service in the former CenturyLink territories Brightspeed now operates. If you are a Brightspeed customer, confirm the C4000LG is approved for your plan and address before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does \"single line\" mean on the C4000LG?\u003c\/h3\u003e\n\u003cp\u003eSingle line means the C4000LG connects over one standard DSL line, which is how most residential CenturyLink and Brightspeed DSL service is delivered. It does not support bonded (two-line) DSL. If your plan uses bonded DSL, check with your provider for a bonded-compatible gateway before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eIs the GreenWave C4000LG a modem and a router?\u003c\/h3\u003e\n\u003cp\u003eYes. The C4000LG is an all-in-one gateway with a built-in WiFi 6 router, so you do not need a separate router unless you prefer to use your own.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast is the WiFi on the C4000LG?\u003c\/h3\u003e\n\u003cp\u003eThe C4000LG uses 2-stream WiFi 6 with wireless speeds up to 3 Gbps. Your real-world internet speed is set by your DSL plan, but the WiFi 6 radio keeps many devices connected smoothly at once.\u003c\/p\u003e\n\n\u003ch3\u003eWill the C4000LG work with cable or fiber internet?\u003c\/h3\u003e\n\u003cp\u003eNo. The C4000LG is a DSL gateway and connects through a telephone-style wall jack. It is not compatible with cable providers like Xfinity, Spectrum, or Cox, and it does not work with fiber-to-the-home, satellite, or 5G home internet.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I set up and manage the C4000LG?\u003c\/h3\u003e\n\u003cp\u003eSetup runs through a web-based wizard, and ongoing management (WiFi name, password, guest network, parental controls) is handled in the built-in admin interface from any browser.\u003c\/p\u003e\n\n\u003ch3\u003eIs this C4000LG new or refurbished?\u003c\/h3\u003e\n\u003cp\u003eThis C4000LG is Grade A Certified Renewed. Every function has been professionally tested, the device has been cleaned, and it is backed by our 90-day full coverage warranty.\u003c\/p\u003e\n\n\u003ch3\u003eWhat happens if the modem stops working?\u003c\/h3\u003e\n\u003cp\u003eIf anything goes wrong within the first 90 days, contact our USA-based support team and we will troubleshoot, replace, or refund. We stand behind every modem we ship.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n.mg-product-desc h2 {\n  font-size: 1.25rem;\n  line-height: 1.3;\n  margin: 1.5em 0 0.5em;\n  font-weight: 700;\n}\n.mg-product-desc h3 {\n  font-size: 1.05rem;\n  line-height: 1.3;\n  margin: 1.25em 0 0.4em;\n  font-weight: 600;\n}\n.mg-bulk-callout {\n  border: 1px solid rgba(128, 128, 128, 0.35);\n  border-radius: 6px;\n  padding: 0.75em 1em;\n  margin: 0 0 1.25em;\n  background: rgba(128, 128, 128, 0.08);\n}\n.mg-bulk-callout p {\n  margin: 0;\n}\n\u003c\/style\u003e","brand":"Greenwave","offers":[{"title":"Refurbished","offer_id":45508925128790,"sku":"DMR422R-FBA","price":88.49,"currency_code":"USD","in_stock":true},{"title":"Used - Like New","offer_id":45508925161558,"sku":"DMR422B-LN-FBA","price":88.49,"currency_code":"USD","in_stock":false},{"title":"Used - Very Good","offer_id":45508925194326,"sku":"DMR422B-FBA","price":88.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/9463\/2534\/files\/My-project-115_3b693042-6bb6-4ff4-a227-7715acee0bf1.png?v=1712255505","url":"https:\/\/www.modemguides.com\/products\/greenwave-c4000lg","provider":"ModemGuides","version":"1.0","type":"link"}