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Visitor

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2 Messages

Thursday, December 1st, 2022 8:53 AM

Closed

mb8611 firmware

My Motorola mb8611 kept rebooting frequently as mentioned in other posts I found in this forum.

I guess it may be related to firmware update, because a few times I logged into 192.168.100.1, I noticed a different firmware version.

The device seemed coming with firmware version 8611-19.2.18. And sometime after a rebooting, it became 8611-21.3.7. Then it would reboot again soon and rolling back to 8611-19.2.18.

How could I get stable connection without changing to a new devices?

Also post the signal status below.

 Downstream Bonded Channels  
  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
   1 Locked QAM256 20 507.0 -1.6 40.8 0 0
   2 Locked QAM256 4 405.0 -1.5 41.2 0 0
   3 Locked QAM256 5 411.0 -1.3 41.5 0 0
   4 Locked QAM256 6 417.0 -1.3 41.5 0 0
   5 Locked QAM256 7 423.0 -1.2 41.5 0 0
   6 Locked QAM256 8 429.0 -1.3 41.7 0 0
   7 Locked QAM256 9 435.0 -1.3 41.7 0 0
   8 Locked QAM256 10 441.0 -1.4 41.8 0 0
   9 Locked QAM256 11 447.0 -1.1 41.9 0 0
   10 Locked QAM256 12 453.0 -1.0 41.9 0 0
   11 Locked QAM256 13 459.0 -1.3 41.7 0 0
   12 Locked QAM256 14 465.0 -1.5 41.8 0 0
   13 Locked QAM256 15 471.0 -1.4 41.6 0 0
   14 Locked QAM256 16 477.0 -1.2 42.0 0 0
   15 Locked QAM256 17 483.0 -1.2 41.9 0 0
   16 Locked QAM256 18 489.0 -1.2 41.8 0 0
   17 Locked QAM256 19 495.0 -1.6 41.5 0 0
   18 Locked QAM256 21 513.0 -1.4 41.3 0 0
   19 Locked QAM256 22 519.0 -1.3 41.8 0 0
   20 Locked QAM256 23 525.0 -1.4 41.6 0 0
   21 Locked QAM256 24 531.0 -1.5 41.6 0 0
   22 Locked QAM256 25 543.0 -1.6 41.4 0 0
   23 Locked QAM256 26 549.0 -1.5 41.6 0 0
   24 Locked QAM256 27 555.0 -1.2 41.7 0 0
   25 Locked QAM256 28 561.0 -1.1 41.7 0 0
   26 Locked QAM256 29 567.0 -1.1 41.7 0 0
   27 Locked QAM256 30 573.0 -1.3 41.8 0 0
   28 Locked QAM256 31 579.0 -1.3 41.8 0 0
   29 Locked QAM256 32 585.0 -1.2 41.7 0 0
   30 Locked QAM256 33 591.0 -1.0 41.8 0 0
   31 Locked QAM256 34 597.0 -1.0 41.9 0 0
   32 Locked OFDM PLC 48 688.0 -0.9 41.7 43877307 0


   Upstream Bonded Channels  
  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
   1 Locked SC-QAM 1 2560 10.4 45.0
   2 Locked SC-QAM 2 5120 16.4 42.5
   3 Locked SC-QAM 3 5120 22.8 41.8
   4 Locked SC-QAM 4 5120 29.2 41.3
   5 Locked SC-QAM 5 5120 35.6 41.8
   6 Locked SC-QAM 11 2560 40.4 44.5

Event log showed the following critical messages:
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;
No Ranging Response received - T3 time-out;

Visitor

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1 Message

2 years ago

How do I check my firmware?

Visitor

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44 Messages

@user_20c833​ To view your modem’s status page go to http://192.168.100.1 or http://10.0.0.1

Use the ID/PW on the label underneath the bottom of the Moto 8611 if this is your first time.

It sould be the first page you get into in the grid displayer.

Visitor

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9 Messages

2 years ago

Same issues using MB8611. Downgraded to a Netgear Docsis 3.0 router while Xfinity figures this out.

Visitor

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2 Messages

@nbelk4004​ Have they given anyone a timeframe for a fix?  I'm still have problems with the internet going in and out.  It's really getting frustrating.  You can call xfinity to get a credit for the days service is out.  [Edited: "Solicitation"]

(edited)

Official Employee

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3K Messages

Hi there, @user_0a1b53. I am sorry that you are feeling frustrated by this situation and want to help. We are able to check on your ticket and further help. Please send us a direct chat message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forums page.

Here's the detailed steps to direct message us:
• Click "Sign In" if necessary
• Click the "Direct Message” icon (upper right corner of this page)
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
• Type your message in the text area near the bottom of the window
• Press Enter to send your message

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Visitor

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9 Messages

@user_0a1b53​ Haven’t given me a timeframe. Had a tech out yesterday who said all lines coming into the house were good and that’s when I found this massive thread on the forum along with many other separate ones. He said he would ask around and let me know if there was any info about MB8611 firmware but nothing so far.

If xfinity just provided free leased modems like any other ISP I would just swap to one of those, but I’d rather lose the additional 400mbps down using an older modem than pay $15/mo in perpetuity for a $150 modem.

Visitor

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5 Messages

2 years ago

Joining the club of Motorola MB8611 owners - brand new within the past 30 days - that drops the Internet randomly at least 4 to 8 times a day. The only solution is to rent the modem from Xfinity; happy to purchase another modem if that will solve the problem, but it doesn't appear to be very likely they will solve the problem that appears to be caused by Xfinity themselves.

Visitor

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5 Messages

Having purchased the Motorola on Amazon, I'm returning it and purchasing the Arris S33, which, based on other recommendations on this board, may solve the problem.

I will post an update if this solves the problem. Luckily the Motorola was less than 30 days old, and I can return it for a full refund.

Sorry to waste time chasing this issue when Xfinity has the resources in their system to know which customers have this modem - it's in their control panel software - and could have proactively solved the problem independently. 

Visitor

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5 Messages

Posting an update, the Arris S33 solved the problem.

No more dropped connections, no more attempts to blame an expensive customer-owned WIFI mesh network, and no more trying to force service calls or blame brand-new equipment for an obvious issue with their network and a leading manufacturer. 

Sadly, Xfinity could simply pull their logs, find all the customers with this equipment, monitor how many are experiencing lost connections, and take action to fix this. They should do it, but they never will.

This is what public infrastructure monopolies deliver. Overpriced services, poor customer experiences, and no way to punish the poorly run companies and reward the well-run ones.

The tight bond between the oversight organizations and the cable industry is toothless and not working to benefit the public.

Visitor

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1 Message

2 years ago

I am also having problems with my Motorola 8611 modem, also starting around the same time about a month ago now. currently my modem shows firmware 19.2.18. It routinely restarts itself and drops connection. I had a tech out a couple weeks ago and he fixed my power levels that were "out of spec" It seemed to fix the problem, but it has returned. I am now outside of the return period for this modem, so would love to find a solution.

Visitor

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5 Messages

@user_a8ab8b​ I'm not convinced that the issue is directly related to power levels but is driven by software forced onto the modem by their network. Some people have contacted Motorola about the problem, and some report that they received a new modem, again not convinced this will solve it.

Based on posting here and around the Internet, Xfinity is hiding behind its obligation to allow customers to purchase equipment, and their willingness to blame customer-owned equipment failures on newly purchased equipment when simply reviewing their support boards should provide them with enough information to begin to process of owning the problem and solving it.

Visitor

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1 Message

I agree, and am having the same issues with my modem.  It is basically a brand new modem, about 4 months old.  They need to sort out why their software version is not behaving properly and stop pushing it back to back to back when it fails causing multiple service disruptions in a row.  Also, schedule a time or set a time to update, don't do it randomly so the end user cannot plan around the service interuptions.

Official Employee

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3K Messages

Hello, @pembroke-ma and thread. We definitely want our service to work great. We do not mind if you purchase your own device and have thousands of customers that use their own equipment without issues. Let's continue to work together to get to the bottom of why this is happening. Have you already changed out to the S33 modem or did you hold off on that? What other troubleshooting steps have you tried to resolve this? 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Official Employee

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3K Messages

Hi, @user_cdbd17. Thank you for letting us know that you are also experiencing an issue with your modem causing intermittent service. Have you checked the signal levels to the modem to see if that is showing the issue or gone through our troubleshooting process? We are glad to help and want to ensure this issue is moving forward to a resolution.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Visitor

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5 Messages

@XfinityRay​ I purchased the S33 and installed it yesterday; so far, 17h of uptime, no resets, no breaks or interruptions, and there was no need for Xfinity to service the cable in the area or the lines to my home.

So the conclusion is clear, Xfinity is breaking Motorola modems and should proactively contact every customer with this modem - you can see their equipment provisioning in your logs -  and you, Xfinity, be solving the poor service created by the breakdown in Motorola equipment.

Sitting back and claiming it's someone else's problem is not a solution but is the current experience Xfinity provides.

Regular Visitor

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8 Messages

2 years ago

Just to add on I found this thread because my MB8611 Modem all of the sudden over last 1-2 months has been having intermittent reboot issues which occur at random times with no apparent cause.  As others have stated I am fearful when on work video/conference calls through my internet and have had to have a voice dial in as backup given the history.  It really is disappointing that Xfinity is not able to address the issues with all the similar user problems noted to offer up solutions.  Hopefully this will be resolved in some manner, but I am fearful we will just continue to get the same runaround.

Contributor

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64 Messages

2 years ago

Wow! Is problem still ongoing?? Absolutely ridiculous! I bought an MB8611 modem the first week of December and it never really seemed to work right from the start. The blue downstream arrow never stayed solid and was always blinking. Then I started to get constant disconnects and reboots. I thought it was a connection issue so lots of back and forth chats with comcast and no fix. Then on xmas eve, after yet another chat with troubleshooting the issue, my modem got bricked, probably due to something they sent to it. All lights were on and strobing rapidly. Reset did nothing. Unplugging did nothing. Bricked. So I returned it was going to get another MB8611 but good thing it was out of stock or I would still be in the same boat with you guys. I got an Arris SB8200 and haven't had any issue since. A month later and this problem is still not fixed? Total [Edited: Language] from comcast. And it seems they don't want to acknowledge there's  a problem as they'll be admitting fault and then be on the hook for crediting all these people with constant disconnects. 

(edited)

Regular Visitor

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8 Messages

@petmitsu​ Let us know how the Arris SB8200 works for you - somewhat concerned this is bigger issue than the modem, but ridiculous that we have to deal with these problems and sort out ourselves.

Contributor

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64 Messages

The Arris SB8200 has been working flawlessly ever since I got it. It's been almost a month and no problems.

Visitor

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3 Messages

2 years ago

I too been having the same problem with my 8611. Yesterday it reset 10+ times throughout the day/night.   Xfinity has been NO help!  I have been searching and found MANY listings for this exact problem.  I got so fed up I purchased a Arris Surfboard S33 modem...NO MORE PROBLEMS!!  So far running for 6 hours not a glitch.  There are NO errors in the event log...only letting me know of successful login. 

UPDATE 3 days later:  S33 still working flawlessly.  No errors, no resetting, no problems. S33 Event log shows no errors unlike the 8611.  8611 going back for warranty repair/replacement.

(edited)

Contributor

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11 Messages

2 years ago

Hello All,

I am still having the same exact issue everyone else is having. This has been going on since early December. I am at a loss and I don't feel xfinity is doing anything about it. Clearly this is a firmware compatibility issue between xfinity and Motorola. This modem is "approved" by Comcast so to have to go through this and have 10+ disconnects during work hours is unacceptable. And NO I don't want to buy another modem that may or may not fix the problem. Everyone in this thread already paid for the 8611 and we really just want it to work without disconnecting all day long. I am tired of saying this over and over. 

Problem Solver

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497 Messages

Hi, @


Could you please send our team a direct message with your full name and full address? Our team can most definitely take a further look at this issue.

To send a private message:
Click "Sign In" if necessary
• Click the "Direct Message" icon
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line
• Type your message in the text area near the bottom of the window
• Press Enter to send it

I no longer work for Comcast.

Visitor

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1 Message

2 years ago

Hey there, just want to say i'm also having the same issue with the 21.3.7 firmware update. Seems the 1m+ errors are switching channels. Used to just be channel 20 and is now erroring out on different ones, but at least not multiple. Also somehow only getting 4 upstream channels when my modem supports 8.

Contributor

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28 Messages

2 years ago

I spoke with Motorola last Thursday (Tuesday today), and they were to send me a replacement to arrive within 3 days.  Now, 3 business days and 5 days later it seems the replacement still has not shipped.   I saw on Amazon I could order an Arris S33 and it would arrive this afternoon.   My 8611 continues to reset multiple times a day and I have 2 virtual job interviews set to occur in the next 48 hours (4 resets during my virtual job interview in 45 minutes last week with the 8611). I pulled the trigger on the Arris, should arrive in a few hours.   I have asked Motorola to keep the replacement and asked for reimbursement for the 8611 that does not function properly under its 2-year warranty.  We'll see how this all plays out.

Visitor

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16 Messages

@sigs​ 

You're not going to see a penny from Moto; I was told by one of their reps that their warranty policy doesn't work that way:

"Motorola does not offer refunds, substitutions, or credits under warranty."

I have a replacement modem on the way, but if the new one malfunctions in the same way, I'll RMA that one too.  And I'll keep RMA'ing the replacement of the replacement until I get a stable connection again. Maybe the cost repeated RMAs will help them see the importance of a single refund. 

(edited)

Gold Problem Solver

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7.2K Messages

Awesome! Please let us know how things go, if you need anything else please don't hesitate to reach back out here. 

I no longer work for Comcast.

New Poster

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8 Messages

Not awesome................................

Contributor

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28 Messages

@denn73​ Motorola confirmed my 8611 replacement had not been shipped.  They advised "limited" warranty and were willing to send me a replacement (obviously they are not quick about that) and said they will not reimburse me for my purchase.  I told them to keep it.  My Arris S33 arrived 45 minutes ago.  It was a snap to set up with Xfinity using the app.   It has been on 20 minutes and seems pretty cool to the touch.  Hopefully mine remains durable and connected.  Tomorrow morning I have a very important zoom call.

Visitor

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16 Messages

@sigs​ You made the right choice by telling them to not process your replacement. By that I mean, I found out tonight that the replacement modems they send are not guaranteed to be new, and sealed in retail packaging. I would like to buy a different modem but I refuse to accept the financial loss because of two companies incompetency for developing flawed firmware.

"The replacement device is not guaranteed to be a new device. The warranty is a limited warranty, we may use functionally equivalent reconditioned, refurbished, or new Products. "

"However, you will know if a unit is new if the serial number of the replacement unit does not have an R it is serial number."

That's some more information that I wish I had before I started the replacement process. I just want this to be over so I can permanently put Motorola in my rear view mirror.

Visitor

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14 Messages

2 years ago

I'm on eight disconnects today. 2 of them in 3 minutes........   

Visitor

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1 Message

2 years ago

Well, add me to the list! I've been using my modem for 2+ years without a single problem until recently.  I've had 2 disconnects today. Started having this issue early December, and it hasn't stopped yet. 

Does anyone have any updates on the matter? This is extremely frustrating. 

Currently running below version on my MB8611:

Retired Employee

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1.4K Messages

Thanks for reaching out @motok.rc! Have you had any more disconnects since this post?

Visitor

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14 Messages

2 years ago

Motorola reply, they know all about this. 

Regular Visitor

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8 Messages

@user_8936c5​ interesting that Motorola is noting this is something caused by Xfinity pushing out the update while @XfinityChe implied in a prior post that this was not caused by Xfinity.  Typical finger pointing with no solution while customer suffers.

Visitor

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14 Messages

2 years ago

Moto wants to give me a MB600 for replacement.......

Visitor

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14 Messages

2 years ago

What a joke. 180 dollars down the drain........
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