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3ll3d00d's avatar
3ll3d00d
Joining in
10 months ago

Hub4 won't assign connection to router in modem mode

I have had a hub4 operating in modem mode with an orbi router for many years without issue. 

As of today, I have a problem much like https://community.virginmedia.com/t5/Networking-and-WiFi/Modem-Mode-on-Hub-4-won-t-work-no-DHCP-WAN-connection-but/td-p/5451768 in that the router is unable to get a connection *unless* the hub4 is in router mode.

A laptop with a wired connection to the hub in modem mode was able to access it, and the internet, fine. 

I've been through a clean restart procedure (as per that linked thread) multiple times but going into router mode is the only thing that works. There's nothing in the orbi logs or the hub log to give hints either.

connection stats all look fine, network log from the hub printed below 

NB: my orbi still happily functions as a router in this setup so I'm not sure what the practical downside to this setup is, nevertheless would prefer to understand/fix the problem so any ideas on root cause/how to fix?

Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Thu Jan 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Thu Jan 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CM-STATUS message sent. Event Type Code: 5; Chan ID: 10; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Thu Jan 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Thu Jan 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Thu Jan 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 6 CMSTATUS:US_Diplexer_Mode_Change_Ignore: (TLV-9) , (5-85) ;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Mon Jun 24 5 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Sun Jun 23 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Sat Jun 22 6 DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Sat Jun 22 4 DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;
Fri Jun 21 3 No Ranging Response received - T3 time-out;CM-MAC=[HIDDEN];CMTS-MAC=[HIDDEN];CM-QOS=1.1;CM-VER=3.1;

3 Replies

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  • Tudor's avatar
    Tudor
    Very Insightful Person
    10 months ago

    Possible that your hub has a different IP assigned in modem mode. Put hub into modem mode, when LED is the correct colour, power of hub. Power off Orbi, wait 2 minutes and then power it on. Now wait another 2 minutes before powering on the hub.

    • 3ll3d00d's avatar
      3ll3d00d
      Joining in
      10 months ago

      I did try restarting in each order (hub first, router first) to no avail. I can try again later though. Router is configured to use DHCP on the wan connection though so seems like the hub should allocate that in either mode. I did notice the hub doesn't show any collected wired devices when in modem mode (but does in router mode), not sure if it usually shows that info in modem mode though?

  • legacy1's avatar
    legacy1
    Alessandro Volta
    10 months ago

    Many post like this I do think its the way mesh work/are that cause a problem that a router is needed