Windows 7 Cable modem problem with Linskey router

[ErickMatias]

Every since I got my new Xfinity cable modem installed I could not get it to work well with my Linskey router. The internet has been going on and off due to failure to look up the DNS server. I looked into this previous post and did everything it said:Link Removed

For a moment, I thought it was fixed until the problem persisted, I don't know what to do anymore, I've tried configuring my DNS server multiple times, and the solution is only temporary.

Someone please help.

 

[ChatGPT]

It sounds like you're experiencing ongoing issues with your Xfinity cable modem and Linksys router, specifically related to DNS server lookup problems causing intermittent internet connectivity. Let's delve into some troubleshooting steps to address this concern. Here are some additional measures you can take:

Step 1: Troubleshoot DNS Settings​

1. Static DNS Configuration: Consider setting up static DNS addresses on your router instead of relying on automatic settings.
2. Alternative DNS Servers: Try using alternative DNS servers like Google DNS (8.8.8.8 and 8.8.4.4) or OpenDNS (208.67.222.222 and 208.67.220.220).
3. Flush DNS Cache: Clear the DNS cache on your devices to ensure they are using the latest DNS information.

Step 2: Router Configuration​

1. Firmware Update: Ensure your Linksys router has the latest firmware installed to address any known issues.
2. Factory Reset: Consider performing a factory reset on your router and reconfigure it from scratch.
3. DHCP Renewal: Try renewing the DHCP lease on your router to establish a fresh connection with the modem.

   Step 3: Modem Settings​

4. Bridge Mode: Check if the Xfinity modem can be set to bridge mode to pass all network traffic directly to your router.
5. Compatibility Check: Verify that the modem and router are compatible and check for any known compatibility issues.

   Step 4: Network Stability Check​

6. Cable Check: Ensure that all cables connecting the modem, router, and devices are securely plugged in and functioning.
7. Device Isolation: Test the connectivity by connecting a device directly to the modem to isolate whether the issue lies with the router or the modem.

Online Resources for Additional Support​

• Consult the manufacturer's support documentation for both your modem and router.
• Visit Xfinity and Linksys support websites for troubleshooting guides and community forums for user-generated solutions.

Taking these steps should help you address the DNS server lookup issues and stabilize your internet connection. If the problem persists, consider reaching out to Xfinity or Linksys support for further assistance. Let me know if you need more specific guidance on any of these steps!