Looking to purchase modem and need advice

This is my first time here and not sure if this is the correct section of the forum. I presently have Comcast xfinity and they are increasing the modem rental to $13/month, so I was thinking of purchasing one. I am not that technically inclined and would appreciate any feedback.

The rented Comcast modem is Arris TG1682G voice and data dual band wifi capable XB3. I have just one desktop I use, am not using phone service. I did a speed test it is download 3.3 Mbps and upload 2.3 Mbps.
I am not into gaming, just general use, watching videos, etc. I do have a few questions.

1. Since the rented equipment is a modem/router combo, can I just buy a combo unit or do I have to get two separate units?

2. Will I have any issues with Comcast and if something happens to the equipment, does that mean I will have to purchase again and be out more money?

3. I was thinking of going to Best Buy and wanted to know what would be my best options and if there is anything I would have to tell the clerk. I want to make sure I don't get one that is way more then I need.

Would appreciate any feedback.


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That 13 a month may be a good deal.

I'll write why I stick with the rental most of the time at the end after I try to answer questions.

1. Combo units are fine. But you have to get Comcast to say the model is compatible. Or they can deny activation.
2. BEAT ME TO WHY RENTAL IS A GOOD THING. If your modem fails, it's your problem. Same for any setup or other issues. It's all on you.
3. I have a buddy looking at buying his own and he's going with the best he can get. It's still only 129USD so he doesn't care if the cable company warranty and support is gone. He accepts that. I don't have the models he's looking at but he'll get a price from Amazon and then head to BB to see if they have it and will match the price.

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Additional to other reply

which may be sound advice. Your upload/download speeds don't seem to be that good. They're more like early DSL or old T1. If you've not done so already, you might check to see who else might provide service to your address. If you're stuck with Comcast due to geography issues and lack of competition, so be it. I did buy my own modem when the provider was reported to be entertaining the idea of rental fee. In my case, the exchange simply required that I call the provider with the WAN side MAC address so they could register it. I did have to choose a supported modem and a call to them to inquire was easy enough. You'd need to do the same as was already mentioned. One later caveat I found out about is that some providers will occasionally flash a modem's firmware to "optimize the customer experience"...or so they tell you. What that can do, however, is make it impossible to use that same modem with a new provider should one become available. I know of this happening to a family member's personal modem. He had to buy another when he changed providers.

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Keep Rental

Keeping your rental arrangement for the modem/router combo is the best option for you. The Arris TG1682G you currently have is capable of delivering fast Internet speeds. Your Internet download speed seems to be rather slower than it should be. This could be related to a number of factors including the router, configurations, Wifi issues and issues on Comcast's side. It is best to call customer assistance staff and speak to Technical Support before considering buying your own router. Rarely, in urban centers, very low speeds are the only option. So, Technical Support should be able to help you resolve the slow speed issue for you.

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Looking to purchase own modem

I did call Comcast and I have the Economy Plus for internet and was told that the download speed is correct for what I am paying for. I only use the internet to surf and watch videos.

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Let's put some dollars on what service calls cost.

Here the minimum service call is about 150 dollars. It's not cheap. That means you would have to go at least one or more years to see any payback if there was any tech house call to correct or fix a thing.

If everything is working, you may want to do nothing.

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Upgrade May Be Needed

Thanks for this information. I did an online search for Comcast's Internet plans and found the following information regarding your current Internet plan.

Economy Plus Internet has the given download and upload speed.

Online Listing

Economy Plus grandfathered 3 Mbps 768 kbps

The Economy Plus plan speeds for download and upload are no longer being offered. In light of this, it is best to upgrade your Cable Internet plan to the next highest speed being offered. I think it is, Internet Essentials. You should contact Comcast to get more information about upgrading options.

Note: I do work for an ISP in Canada.

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If you don't use wifi and don't use the phone service then all you need is a modem.

Contact comcast and see if they will sell you such a thing or swap out what you have.

The modem/router combo might be the only thing they offer.

If you get your own modem make sure it's on the comcast supported list.

If you get your own modem and it breaks then your on the hook to buy a new one.

If you place a service call and the problem turns out to be your owned modem you will be billed for the service call.

As long as you understand the downside to owning then there won't be any surprises.

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Thanks. I had read that even if a person has just one desktop, they they should get a router for security reasons. Is that true? Does the router offer more privacy protection?

I will give Comcast a call tomorrow.

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That has been true for a very long time.

But a current W10 might not be successfully attacked when directly on the Internet. A lot of work has been done to fix that issue.

-> Why a router helps is that when Windows first got on the Internet, it was possible to send Windows mangled IP messages and Windows would BSOD. When this happened, nothing happened at the office or home because we had routers. UNSOLICITED traffic is not forwarded to the PC so it is a natural firewall that's been working fine for decades.

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I suppose that's true but it also adds another layer of complexity to the mix.

The rig I'm working with....9 yrs old...has a simple setup of cable>modem>pc.

I keep the machine patched and I have seen zero issues.

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