Forum Discussion

hlcj's avatar
hlcj
Tuning in
22 days ago

Hub 5x issues on firmware 7.8.3-2410.5

Hi,

Since my Hub 5x auto-updated to firmware 7.8.3-2410.5 (around 20/08/25), my broadband has become unreliable for online gaming.

 

What’s happening:

- Games disconnect after 2–10 minutes, every time.

- This happens on multiple devices (Iphone and Samsung Galaxy S25 Ultra).

- General browsing and streaming seem fine, but anything that relies on a stable connection drops out.

- Pings sometimes show duplicate replies and big spikes in latency.

 

What I’ve tried:

- Disabled Smart WiFi and split 2.4 GHz / 5 GHz into separate networks.

- Locked 5 GHz to channel 36–48 at 80 MHz.

- Changed DNS to Google and Cloudflare.

- Tested MTU (1472 works fine).

- Tried keepalive scripts to hold the connection open.

- VPN fixes the problem completely (but obviously I shouldn’t need to use one just to play games).

 

This only started after the 7.8.3-2410.5 update. Before that, everything was stable.

 

Can you confirm if this is a known issue with the latest Hub 5x firmware, and if there’s a fix or workaround? It looks like the router is mishandling online gaming traffic.

 

Thanks.

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16 Replies

  • Client62's avatar
    Client62
    Alessandro Volta
    22 days ago

     7.8.3-2410.5 has only been out a few days and there are a couple of other posts that are grumbles.

    The VPN may be masking sporadic connection issues by silently performing retries.

    Noticed any new functionality in 7.8.3-2410.5 ?

    Odd on still no Modem mode or VM would have loudly telegraphed that.

    • hlcj's avatar
      hlcj
      Tuning in
      22 days ago

      No modem mode, and it's been doing this since it updated

    • legacy1's avatar
      legacy1
      Alessandro Volta
      22 days ago

      I hate that VM think they can get away with no modem mode on hub5x even with the problems and limitation on router mode or maybe they just don't what to support users with IPv6 when/if it happens.  

      • hlcj's avatar
        hlcj
        Tuning in
        22 days ago

        Seriously, it's pathetic, and we tried everything to get it fixed, but stupid 5x hardware decided to break everything 

  • Client62's avatar
    Client62
    Alessandro Volta
    22 days ago

    Can you detect / evidence the issues with : 

    https://www.samknows.com/realspeed/

    Once the test begins click on: Run full test
    to include: Latency, Jitter, Packet loss & Upload speed

    The speed at the Hub should reflect your subscription.

    The same “Realspeed” tests are available as very handy
    apps for iPhone/iPad and Android mobile / tablets.

    Or with : 

    https://speed.cloudflare.com/ 


      • John_GS's avatar
        John_GS
        Icon for Forum Team rankForum Team
        18 days ago

        Hi hlcj 

        Thanks for posting and welcome to the community. Sorry to hear of any issues with the Broadband. Can you do the test via a laptop/PC for us at the same site as above? 

  • mattygc2004's avatar
    mattygc2004
    On our wavelength
    20 days ago

    Have you made any progress - I to had an outage last wednesday and on same firmware with 5x - Ive complained and no known issue but then persist its to do with repairs following outage and still working on it 

    Teams doesnt work without Crashing
    Gaming Kicks off on multiple devices 
    Downloading Crashes 
    Network quality / poor network errors

    Various Tests run
    Huge spikes every now and again with Ping hitting 500 but has hit 8000 This seems to break the connection 

    VPN and DMZ fix the issues 

  • NurseK's avatar
    NurseK
    Tuning in
    13 days ago

    Having the same issue. Turns out Virgin borked the update, and as above a pc in the dmz fixes the issue,  its UPNP thats broken.