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Sam SlaughterFlag for United States of America

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Seeking a recommendation for a DSL router or modem with specific requirements

Greetings wise wizards of EE:

I'm helping a non-profit who has continual Internet connection issues. I've done a great deal of troubleshooting, and have isolated the issue to their networking equipment. In their location, they only qualify for DSL service. The ISP that provides their service flat out will not issue a new DSL modem+router gateway, but instead only replaces troubled equipment with refurbished models, which is very surprising. They have issued five replacement gateways in two years, so the non-profit wants their own equipment instead.

A colleague of mine is going to configure our own brand of router, so all we need is the modem. However, I have scoured Amazon and called many manufacturers to no avail with what I need. We are considering purchasing a router to set into bridge mode, since we are having so much trouble finding the right modem.

Here is what we need: a modem (or router) that is both ADSL (advanced DSL) and VDSL (very high speed DSL) and bonded pair compatible. It does not need wireless capability, but we can disable if needed

There are a kajillion cable modems out there, but DSL modems/routers with the above requirements, not so much.

If you have a recommendation that fits the above requirements, I would be most grateful indeed. Cost is not too much of an issue, at this point.

Many thanks in advance,

Zovoth
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Dr. Klahn

DSL is pretty much on the way out, except in communities without cable service.  The POTS copper maintenance is poor and it's not unusual for service to degrade for days after a good soaking rain.  I haven't seen new DSL gear on the market for some time, so that explains why the service provider is only providing refurb equipment.  Eventually that will come to an end too, when the refurb market dries up -- best to be out of DSL well before that happens.

In this situation I'd look at satellite internet instead, or a laser link to a nearby location that can get cable or fiber service.
In addition to Dr. Klahn's comment, most ISPs have keyed modems.

Which means in most cases, you can't just drop any old DSL modem onto a connection + have it work.

Even the same exact vendor + model will likely fail.

Before you invest a bunch of money, best check with your ISP to determine if the service you're using allows this.
Also look into long-range WiFi.

https://en.wikipedia.org/wiki/Long-range_Wi-Fi

If you can get line-of-sight and find a cooperative neighbor, it's possible to get several miles with WiFi using high-gain antennas.
Get yourself two VDSL modems. They are backwards-compatible with ADSL. Use those to connect to a multi-WAN router that supports link bundling or failover.
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Kimputer

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Greetings experts:

Many thanks for your helpful responses, I greatly appreciate it. The Draytek devices may be out of the budget of the client, but I will offer them regardless.

I also appreciate your responses in regards to DSL making its exit from the Internet theater, that would certainly explain the difficulty in obtaining network equipment.

Be well and take care,

Zovoth