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rgr's avatar
rgr
Tutor
Oct 27, 2021

RAX20 router loses IPV6 connectivity several times daily

Using Xfinity

Modem: Netgear CM1000

Router Netgear RAX20 (which doesn't appear in the drop-down above)

 

My RAX20 router is connected to Xfinity and loses IPV6 connectivity several times a day. I initially used auto-detect to get a IPV6 address, after which the IPV6 page indicated it was using DHCP. For a short time, everything tests fine on IPV6 sites, but then starts to fail.

The router should support IPV6 consistently once connected, but doesn't.

I know Xfinity provides IPV6 as it does connect - but only for a short time

How can I fix this?

7 Replies

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  • FURRYe38's avatar
    FURRYe38
    Guru
    Oct 27, 2021

    Have you tried connecting 1 wired PC to the modem directly with out the router being online to see if same thing happens? Possible this maybe a ISP IPv6 service issue happening on your line. Something to ask the ISP to check. 

     

    Has this been happening all along or just started recently? 

     

    Have you powered OFF the ISP modem AND router for 1 minute or more then back ON? 

    What Firmware version is currently loaded?

    • rgr's avatar
      rgr
      Tutor
      Oct 27, 2021

      Thanks for your reply.

       

      I haven't connected a single pc to test, because I can't keep only that pc active for any significant time without access to the rest of my home network. I would imagine it would workf for some part of a day, but I can get IPV6 to work on the entire network for a few hours now - then it shuts off.

       

      I haven't called Xfinity because their tech support on real networking issues is so poor and so long as they see IPV6 active - they won't see it as their problem. As I can get IPV6 to work for awhile, the problem seems to be restricted to the router.

       

      I have lost IPV6 almost every day. but it's gotten worse lately.

       

      I have unplugged both modem and router for 15 minutes, then powered the moden, then router back on. To no positive effect.

       

      I'm on the latest firmware 1.04.100. Perhaps that's what's made it worse? I would prefer not to go back to a prior version - that would be giving up on updates unless the update specifically says it's addressing the IPV6 issue.

       

      I've done a google search and see quite a number of Netgear/IPV6 issues being discussed - should I just look for a different router that has better IPV6 stability?

      • FURRYe38's avatar
        FURRYe38
        Guru
        Oct 27, 2021

        Has a factory reset and setup from scratch been performed since last update? 

         

        Try reverting back to a prior version that seem to work for you.