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S33 | S34

DOCSIS® 3.1 Gigabit Cable Modem

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  • 1,057 Replies
406 Topics
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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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Wi-Fi Warriors
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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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KupsThe Many
asked in S33 | S34
S33 solid light green back led green and amber

My S33 modem has a solid light green light, and the back LEDs show green and amber for the 1.0 GE port and nothing for the 2.5 GE port (which is the port I was using). I've tried to connect the ethernet cable and go to 192.168.100.1 but it won't load. Any advice? Still under warranty for another year.

5533
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Wi-Fi Warriors
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The Many
Gpsmike16The Many
asked in S33 | S34
White light on S33

Getting nothing but a solid white light. I've tried restarting, changing ports from 2.5 to 1.0, and Factory reset. Nothing works. Tried calling support to get a warranty replacement but the operator was not helpful.

1001
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Wi-Fi Warriors
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pupupladerThe Many
asked in S33 | S34
Cant connect to 192.168.100.1 on S33

Just hooked up the S33 and cant access the web manager through 192.168.100.1 If I set a static IP to: 192.168.100.10 and subnet: 255.255.255. 0 I will lose internet connection and still cannot connect to the web manager. I have internet access if I let it assign the IP automatically. Checking the network details it sets the default gateway to 75.70.120.1 and subnet to 255.255.252.0 Pressing the reset button on the bottom of the S33 didnt help. Any ideas?

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superdeletedThe Many
asked in S33 | S34
Help with Arris S33 Logs, Connection Drops on Local Coax Comm Provider

Hello all! I am new here and am hoping someone might be able to give me some info / guidance / help or whatever to get me in the right direction. It has been many years since I have been on a coax ISP but my new place I just moved into doesn’t have a fiber option so I had to go with it. Like I typically do I picked up my own modem so that I wouldnt have to rent one from the provider. After “some” research I went with the Arris S33 because I already had a great wifi router mesh system and it was on the providers approved list for Docsis 3.1 (1.2 GB Service Connection). For the first month or so everything seemed to work great but lately over the last couple weeks I have been experiencing random device disconnects which sometimes would be full network disconnects. I have been going through the ISP and my router’s support I am starting to think it might be the modem. Since it was brand new and nothing you can confi9gure on it I didnt think it could be the issue but I have been pulling my

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vrundarajiv1971The Many
asked in S33 | S34
why is my arris s33 cable modem state my service provider is Xfinity instead of Astound?

why is my arris s33 cable modem state my service provider is Xfinity instead of Astound?

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cavedonThe Many
asked in S33 | S34
No IPv4 address (only IPv6) on router - S33

Hello, I have just purchased a an Arris S33 to use with my ISP (Cox) and my Google Nest Wifi (router). If I power up the modem and the router at the same time (like after a power outage), the router will not get an IPv4 address, but only an IPv6 address. If I unplug and plug back in the router into the modem, then it will get an IPv4 address. If I disable IPv6 in the router, then the problem does not happen. If I use my older modem (Cisco DPC3010), then the problem does not happen. Cox support believes the problem is with the Arris router because it does not happen with the older modem (and everything else being the same). Thanks, Ludovico

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arisurferThe Many
asked in S33 | S34
S33 Power Cord Replacement

Hello, My ARRIS S33 modem stopped working unexpectedly (solid amber light then light green light and high pitched noise). I purchased a similar modem and tested its power cord on my modem and it worked perfectly with the new cord, so the original power cord was faulty. Since my modem is still under warranty, I want to request a replacement power cord free of charge. Can someone point me in the right direction please? Thanks!

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whkalThe Many
asked in S33 | S34
Arris S33 V2 intermittent internet connection

Hello community members , I recently purchased a refurbished Arris S33 v2 for my 1g connection from Optimum. And I am getting random internet cuts for like 1 minutes and comes online again on its own. I have a Mikrotik router behind S33 modem. when modem goes offline I can clearly see the public ip on wan interface gone and replaced with 192.168.100.10. I don't have to reboot or do nothing it comes online on its own. and below is my log ≈========= No Ranging Response received - T3 time-out;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1; 31/12/1969 18:50:46 3 DHCP failed - RS sent, no RA received;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1; 12/5/2024 13:24:59 3 Successful LAN WebGUI login from 47.219.233.94 on 24/05/12 at 1:34 PM. 31/12/1969 18:50:16 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz. 31/12/1969 18:50:19 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;

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BigStash65The Many
asked in S33 | S34
Does the S33 work well with the Eero 6+ system

Before I buy the S33, does the Eero 6+ router/extenders work well together?

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aalhardThe Many
asked in S33 | S34
S33 solid blue but Xfinity can't see it and no Internet from direct connection

Tech was here today and eliminated everything but the modem I got yesterday. So I go to Best buy and swap it. Get home and this modem has exact same problem (that's 2 new failures in a row). I can't expect that kind of new-bad rate from Arris, can I?

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Wi-Fi Warriors
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s33guyThe Many
asked in S33 | S34
S33 Solid white light and intermittent internet connection

My modem just stopped working randomly. I restarted it multiple times. I tried resetting it by pushing the reset pin up to 30-60 seconds, but the white light never changes. Is there usually a visible confirmation that the reset worked? I finally had a comcast technician come out and I am using a rental modem. But just in the off chance somebody knows the problem, please help. The white light stays on and never changes colors. Also, can we ship the rma back in the original retail box only? It is pretty well protected in the retail box.

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Wi-Fi Warriors
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thebugmannThe Many
asked in S33 | S34
S33 Modem - No Internet

I have a Netgear router with ACCESS CONTROL turned on but NOT blocking new devices. My S33 modem seems to have valid connection lights (solid blue) but none of my wifi devices have internet access. Connected/No Internet. Everything works fine with my older cable modem….

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AcornThe Many
asked in S33 | S34
S33 first time installation

I am trying to install my new S33 modem however it is not an option in the app for installation so I don't know how to set up our modem

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