S33 | S34

so i am having fluctuating internet speeds from 300-500mbps, my spectrum plan is 1gbps, the technician told me he ran a speed test from the outside line and was getting close to 1gbps and he ran from my router to his device and was getting around 700mbps, the only thing he couldn’t test was my S33 Modem, i also ran a local in house speed test from my NAS which connects to my switch then hits my router then to my pc and i get 890mbps download and close to 900mbps upload, the only thing i cannot test locally is my s33 modem, is there anyway to run an inhouse test? i also reset the modem to factory settings and the first couple of minutes i had a good speed test of 800+mbps download but after i ran it a second time it went down to 300mbps once again, Note: all these were wired tests, directly connected. any help would be greatly appreciated!

Cannot access surfboard central app with initial username and password

I normally work on-line beginning at 3:30 a.m. However, my Arris S33 modem goes through its automatic firmware update between 4:00 and 5:00 a.m., disrupting my Internet connection. Can I change the time of day that these updates occur?

My 5G connection is not working on my S33v2. I’ve tried rebooting the modem. I’ve tried using multiple routers. I’ve called xfinity and they say everything is normal on their end. I pay for 1G internet and currently am getting 10-15MB internet through the 2.4G channel.

How can I access the S33 modem configuration using WiFi? when I type the IP address 192.168.100.1 OR 10.0.0.1 , I get an error message stating error 404. My computer does not have an ethernet port. Please advise

I have an Arris S33 modem which I activated on May 27, which replaced a Comcast Xfinity supplied gateway. Since activation, I’ve discovered my internet connection drops every day at around 1AM and connection returns within 5 minutes. Never longer than that. The schedule is the same every day and has not changed. It is not just Wi-Fi but also when connected via ethernet on my desktop computer. I have an Amplifi Alien mesh router which is up-to-date firmware wise but I've already ruled it out as the culprit. During my weeks of troubleshooting, I've been on my desktop computer directly connected to the modem as well. When I lose connection at 1:00 AM, my Xfinity app says it is "Offline". My Alien app shows device is not connected to the internet and "No Internet Connection" is displayed on it's screen. Looking for some help in further troubleshooting this issue. Where should I be looking especially when the connection drops at same time every day? I’m working simultaneously with Comcast o

Howdy, just moved to a new location and we're trying to get things running. We purchased an s33 for use with xfinity and a friend gave us an aruba 315 for use instead of a router. This will eventually change to being modem > switch > cable run to 2 rooms > AP, but for now we're just trying to get wireless working. The modem is registered/activated and the blue light is constant. We've power cycled the modem and AP, swapped cables, etc but still no internet. Hardwiring from modem to a laptop doesn't give a connection either. What next steps should we be taking here? Comcast has already been out and checked the coax and it was "good to go" but I'm less inclined to take their word.

My signals are good, event log from yesterday attached. It did it again this morning. I can’t tell if it’s an ISP initiated reboot but two mornings in a row seems unlikely. Also, is this thing supposed to run warm? I’m about ready to ship it back.

My laptop does not have ethernet port. How can I access S33 webportal to manage the device and update firmware?

The light is blinking green, but it’s not working

Does the warranty cover a lightning strike that disabled multiple electronics, including my s33?

Ok, this is just pointless. I’m trying to diagnose random internet drops. Xfinity says it’s my modem. I’d like to access the logs, but the only way to do that is to hook my computer directly to the modem AND REBOOT IT! Which clears the logs. Arris has a handy dandy app, but it doesn’t have any actual functionality and can’t access anything? So other than unhooking my wi-fi router and bringing down my entire home network to hook a computer directly to the modem and wait hours for a another network issue, how am I supposed to access the logs? Arris could fix this multiple ways. Let me change what the modem is connected to without a reboot. Make an actually useful app. Allow the option to automatically send logs.

My modem, S33, says it’s connected to COX when my ISP is Xfinity. Does this matter? If so, how do I change it? FYI my internet works perfectly fine. Didn’t know if this was just a minor error.

Since replacing my Comcast Xfinity provided Modem Gateway with an Arris S33, I have been receiving alert notifications on my iPhone that my wifi network 5Ghz is “not compatible with iCloud Private Relay”. This only happens when I’ve rebooted my iPhone. I don’t get this message at all on my Mac mini M2 or MacBook Air M1. It’s a bit confusing because when I tap “Use Other Network” it dismisses the notification and I’m still connected to my wifi network and Private Relay is on, and my internet connection appears to work fine. Has anyone else experienced this that can help explain?

Does Arris has an App for Windows 11 for "Surfboard Central" ?

My arris s33 has been working fine for along time, I use Xfinity have solid lines until a few weeks ago it started bugging out, it said it was online yet wasn’t. I had to unplug it, it did it again a week after etc. it’s plugged into a cyber power backup battery. Any ideas on what could be going on here? TIA also should I use my warranty if still valid?

I’m able to login to the admin portal of my S33 using a browser but having trouble using SURFboard Central app. On the WELCOME page, I’ve entered my Email ID, agreed to terms and conditions, and when I tap SIGN IN under “Already Registered?”, I’m brought back to the first WELCOME page that asks, “Please enter your email address to access your account”. I enter my Email ID and tap “SIGN IN” and it takes me to the WELCOME page again to create my account or sign in if already registered. I’m on an endless loop.

The event log generated by my S33 cable modem contains detailed information about the modem’s operation and errors encountered during its normal operation. However, definitions explaining the contents of the event log are astonishingly not included in the user’s manual. Google searches had me going in circles. Does anyone know where can I find the meanings of the various event levels and error messages? What twisted and deluded logic did Arris use to decide that excluding such critical information was a good idea? What's the point of providing this information, yet making the definitions difficult to find?

I have been a long time user of Arris modems. My new S33 that I have had for three months quit working today. It was very hot to the touch and I suspect it was overheating. My old Arris modem was relinked and works fine so I know it’s a modem problem. Arris refuses to repair/replace the modem because it was purchased new off of ebay. Wrapped in a box…… Never connected to the internet. Half of me understands this policy but the unwillingness to help does not. No offer of a partial credit even. I’ll be switching to a different company and will never purchase from you again. Its not about money for me. It’s the unwillingness to do absolutely anything. So here I go to look for other brands.

To minimize vulnerability, can I change the admin password before I connect the cable for internet access? Or does it require xfinity activation first?

S33 was working fine connected to Xfinity. There was a storm in the area with lightning. The S33 is plugged into a Tripp Lite surge protector the coax is plugged into the surge protector as well as grounded on the side of house. Router is still functioning just doesn’t see the Modem. Xfinity app shows no outage but troubleshooting it says it can not connect to the modem. The S33 blinks green even after factory reset. operation of the cable modem. Startup ProcedureProcedure Status CommentAcquire Downstream Channel 687000000 Hz LockedConnectivity State In Progress Upstream Parameters AcquiredBoot State In Progress Upstream Parameters AcquiredConfiguration File In Progress Security Failed BPI+DOCSIS Network Access Enabled Denied Downstream Bonded ChannelsChannel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables44 Locked QAM256 687000000 Hz 5 dBmV 45 dB 0 0 Upstream Bonded ChannelsChannel ID Lock Status US Channel Type Frequency Width Power21 Not Locked SC-QAM 4040

Installed a new S33 modem. Login to monitor fails using Userid:ADMIN and last 8 of S/N Is there a way to find out what should be used or a way to reset the ADMIN password?

I pay Xfinity for 1200 and am lucky to get 400. I’m just off the phone with Xfinity they said it’s a software?firmware update issue with Arris? I’m connected to a desktop Via a Nighthawk Router AC3200 R800 Any help would be appreciated

New modem, local cable company recently upgraded to DOSCIS 3.1. My download is awesome with this modem, but the upstream is missing the OFDMA channel, which is causing my speed to not reach the max speed I’m paying for. Had a technician come out and he noticed that my modem wasn’t connecting to that channel. He put a temp modem on (different model) and it was able to connect to the OFDMA channel. The tech was saying I probably need a firmware upgrade, but the modem I have is one I purchased and they don’t carry those. Therefore, he isn’t sure if they can upgrade the firmware for me. Can anyone help with this or give me advise.

Two ports on back. 1GPS and “up to” 2.5 GPS. The 2.5 port implies I can hook up my 1GPS service into that port since it’s “up to” 2.5. Sometimes the cable provider exceeds the speed I’ve subscribed to. I saw it a lot when I was in the 500 MB/s plan. It’d go to 600-700. So now I have the 1GBPS plan. Should I plug into the 2.5?