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S33 | S34

DOCSIS® 3.1 Gigabit Cable Modem

  • 419 Topics
  • 1,080 Replies
419 Topics
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JoepielThe Many
asked in S33 | S34
modem makes high pitch sound on S33

This is an ARRIS Surfboard S33 DOCSIS 3.1 I purchased about a year ago. It is under warranty still. The pitch makes it impossible to work in the room. I am requesting a replacement. Thanks.

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Wi-Fi Warriors
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crt333
asked in S33 | S34
packet loss increasing, seems like to be S33v2

I bouight my S33v2 11/1/2024 on Amazon. In my previous house my xfinity connection seemed to be getting worse over time, and after moving into my new house (6/17/2024) I can barely hold a connection. My modem is connected to an OpnSense router, so I have graphs of packet loss on WAN and they are up to 100% loss on a daily basis. Xfinity techs have been out twice, first to lay a new cable to house, then to replace all internal house wiring to the modem. The signal is great, I thought it would be fixed when they were here yesterday, but packet loss is worse than ever. I even replaced the cat6 cable between modem and router. How do we get an S33v2 replaced under warranty?

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RJSurferThe Many
asked in S33 | S34
S33 Default Credentials Do Not Work to login the GUI web portal

Hi, I’ve read the thread with similar title and tried password as well as last 8 digits of S/N, “password” and last 8 digits, caps on Admin and Password and nothing allows me to login. Just picked up the unit today. It’s a v2 version if that helps. Thanks!

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VenimeuxThe Many
asked in S33 | S34
S33 not working correctly

I’m trying to get support but the model (P/N) on the bottom of the model isn’t recognized in support system. Serial# field grayed out.

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MikeCOThe Many
asked in S33 | S34
Modem not providing a connection to Asus Router on S33

I have just installed the S33 Modem with Xfinity. I can directly connect to the internet via a wired connection to the modem. The modem, however is not providing a connection to the router. I have tried several cables. The router status is telling me that the ISP’s DHCP is not functioning properly. Xfinity is telling me there is nothing they need to do, but the issue is between the modem and the router. Are there specific DHCP settings that need to be set up either on the modem or the router? The Asus Router I am using is the GT-AX110000.

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tjamespilotThe Many
asked in S33 | S34
S33 high pitch noise and won't connect

After just over a year without issue, I noticed my S33 has started making some high pitch noise after a reboot for the past few weeks. I checked that it wasn't overheating, and I was still getting nominal performance, and the noise would go away shortly after it connected. However, after noticing much slower data rates today than normal (less than 1/10 my typical rate), I did a reboot of the modem tonight. Now, it won't connect at all to xfinity. It will flash a single green led then go solid amber for about 10 seconds and repeat with a lot of high pitch noise. Verified coax and ethernet cables are good. Prior to reboot checked through xfinity that it was connected and no outages. Verified after attempted reboot via removing power for 30 seconds to the modem that xfinity isn't seeing the modem and no outages in my area. Have now re-attempted to reboot multiple times with the same result. I finally decided to pull out my old SB6190, figuring I would have to make do with the lower bandwi

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NanoThe Many
asked in S33 | S34
Phone Support for RMA - S33

How do I get phone support for a replacement modem?

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NanoThe Many
asked in S33 | S34
My Modem S33v2 is dead

My S33v2 Modem is dead, I have gone through all the troubleshooting steps and the cable company came out and confirmed that it was not work. Please send me a new one.

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DgehringerThe Many
asked in S33 | S34
Led light status on ethernet port - S33v2

I replaced a Netgear cable modem, I have a S33v2 and using the 2.5 GE eathernet port it is connected to an Azus GT-AX11000. However the ethernet port is blinking yellow, my connected devices via the Asus can get 700+ Mbps, so it seems like it working fine. But per the manual I would have expect the ethernet port to blink green indicating a 1 GE connection. A bit confused. thanks in advnace David

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happy4uThe Many
asked in S33 | S34
Need to connect the modem S33 with router.

I need to hook my modem to my personal router can you help me step by step

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KristinbThe Many
asked in S33 | S34
Modem S33

Just set up an Arris modem, it connected to my TV, but how do I sync it with my MacBook? Please help!

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EburnThe Many
asked in S33 | S34
S33v2 Shrill Whine

Hello, my s33v2 modem has worked fine for almost a year. Within the last month I noticed a high pitch shrill whine coming from it. Is there anything to do or a way to have it replaced to resolve this issue? I have the modem in my office where I work and it is very distracting. Thank you.

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jay_jay60The Many
asked in S33 | S34
Modem Stopped working - S33

My S33 modem is connected to our google wifi and the other day it went from working to this amber or green ish color and nothing is able to even detect that it is working at all. My wife tried calling and the guy even said during the trouble shooting process that it might have just broken but has anyone else had a similar issue or problem and is there a work around?

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Andy79The Many
asked in S33 | S34
modem S33 solid blue light but no iternet

I bought a brand new modem so I could get 2gb speeds from my internet provider as my old modem was unable to do these speeds. When I hooked it up and had it added to my account it gives me a blue light saying it’s connected. The cox representative told me it was good to go but I didn’t have internet access. I called my router company and after factoring resetting it we were unable to get on the internet. They had me trying to go straight from the modem to my desktop and it still wouldn’t connect to the internet. I had a technician come out and he tested the line and it was good and was confused on why the modem was working but not letting us on the internet. Is it possible I got a bad router from factory? I spent 200$ on the modem so I’m hoping this is not the case but I’m not sure what else to think at this point.

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cpe72658The Many
asked in S33 | S34
Intermittent internet connection on S33

As the title says, for the last few months we’ve had our internet dropping out randomly, multiple times a day. Our ISP Xfinity finally came out and they replaced outdoor connections, and tested indoors but the S33 v2 lights didn’t register internet drop though he was holding the cable. When tested on their modem, it showed internet loss immediately and the internet was stable. Would like someone to tell me how I can fix this as we work remote and this is unacceptable.

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heccpcThe Many
asked in S33 | S34
modem not working on S33

HI , MY S3 bought July 2023 , stopped working yesterday… I supposed it was Xfiny error, and I ask for a tech visit… The tech showed me that the problem is my modem. EVen though the light is green , is not working at all. The tech showed me the service up and running, and we tested with another modem he brought .. The problem is my S3 . Thanls for all your help , this is a medular device for me , for my remote job. Thanks

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darkantThe Many
asked in S33 | S34
S33 - Modem with high pitch noise

The modem was unplugged due to loud hissing noises, it was working fine. Unplugged s33 for 15 mins to let cool down and when I went to plug it in it never booted. Orange light for 10-15 secs than flashes to white for a sec back to orange light for 10-15 secs. Never connects don't see it on Xfinity side and I'm unable to get into web portal either. This product is under warranty would like a replacement I've gone through hours of troubleshooting.

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apk56The Many
asked in S33 | S34
S33 Arris Modem - Losing Connectivity intermittently

For the last several weeks to now almost daily, my S33 V1.0 Arris Modem loses upstream connectivity first (and then all connectivity) typically in the afternoons. The outage can happen for minutes or hours. I sometimes lose connections at other points during the day, but almost daily between 1-3pm. A few things I've noticed in the error logs: 16 consecutive T3 timeouts while trying to range on upstream channel 5 No Ranging Response received - T3 time-out Started Unicast Maintenance Ranging - No Response received - T3 time-out CM-STATUS message sent. Event Type Code: 8; Chan ID: 3; DSID: N/A CM-STATUS message sent. Event Type Code: 7; Chan ID: 3 4; DSID: N/A I also noticed that only 1 Upstream Bonded Channels is locked - Channel 5. Channels 1,2,3,4 and 11 remain Unlocked (sometimes they lock). Power level for Channel 5 is 58.0 dBmW and all other channels range between 51.3-55.0. All Downstream Channels are locked, power levels are at 1 dBmW, SNR/MER is around 42/43 db, Corrected and Unc

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B.H.The Many
asked in S33 | S34
S33 channels locked

I just bought an S33. Originally it was kinda working but not correctly. So I started messing with it. Now all the channels say locked. All the upstream and down stream. I talked to spectrum last night and they said everything was working correctly on there end. How do I fix it?

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EricFeazelThe Many
asked in S33 | S34
Cancel a recent order - S33

I placed an order for an S33 two weeks ago and have not received it. I have tried calling technical support several times, because there is no sales support line, but they have no clue how to help. I just want to cancel the order at this point.

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Jeff OstgaardThe Many
asked in S33 | S34
changing Wi-Fi name and password on S33

how do i change the internet name on my S33

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kr001The Many
asked in S33 | S34
Cancel order for Surfboard S33

I have been waiting almost 2 weeks for an order for the Surfboard S33, but it looks like it’s still Awaiting Shipment. Since I don’t know when this will ship, I want to cancel my order and find a different vendor. Order #59549

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silentshadow56The Many
asked in S33 | S34
Modem stopped working? Solid blue light, strong connection, but no internet?- S33

So I have an Arris Surfboard modem and I've had it for about 3 years and have not had a single issue with it. Over the weekend my internet suddenly cut out and I couldn't figure out why. I had a strong connection and full signal strength on my wifi, however whenever I tried to open an app on my phone/tv/gaming device or browse the internet via my laptop it would say something along the lines that it wasn't connected to the internet or couldn't establish a connection. I assumed it was some kind of issue with my ISP so I was finally able to get a tech to come out and look at it. The only solution they could offer was to give me one of their rental router/modems, which I don't want to do because I have my own equipment. Once they set up the new router/modem my issues were resolved leaving me to suspect there is an issue with the modem? Is the modem the likely issue? Is that the expected lifespan of a modem 3 years? How can I troubleshoot this to find the exact issue and generate a differe

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jvancerThe Many
asked in S33 | S34
S33 Public ip issue

The public ip given to my Linksys mesh router drops and the modem won't give it another one until modem resets are done by me or by Xfinity. One time they needed to reprovision the modem to make it work. Equipment has been replaced but it's still happening.

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daveb30The Many
asked in S33 | S34
How do I set the Time / Time Zone on my S33 Modem

I don’t see any place to set the time or the time zone for my S33. Looking at the event log it would appear that the time or time zone is incorrect.

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