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musicalfruit wrote:What kind of speeds does the D-Link DSL-520B support?

I had a ZTE ZXDSL 831II that was kinda flaky so I had purchased a ZXDSL 831B as a backup modem from eBay.

It works but after some speed tests, it seems that it's capped at ~5Mbit. Usable but not that great since my line is normally around 11-12Mbit.

Thanks!

It appears that G.992.5 (a.k.a ADSL2+) is only supported by the ZXDSL831BII. That would explain why you are not getting the maximum speed for your line.

The D-Link DSL-520B supports G.992.5 and hence should get you the speeds you used to see on your line.

The DD-Link DSL-520B claims full ADSL2+ support. That would be 24 Mbps sync, for 20 Mbps throughput. My old ZTE 831II, which finally died, was good for 17.9 Mb sync on a 3,300 foot loop. The DSL-520B matches that; so I get 15 Mbps throughput.

Are you certain the ZTE 831B is ADSL2+? It sounds like what I was seeing when I put my old, SBC-issue SpeedStream 4100 in operation here.

Thanks for the info, torstenb and nsmiller!

I had purchased the modem off eBay and the listing said that it was a ADSL2+ modem. I guess they were mistaken and I didn't do enough research. Whoops. Good thing that it was only $20.

My 831II finally died after being flakey for a long time.

So I used the 831B until I was able to find a replacement.

Ended up buying a refurb TP-Link TD-8616 for $12 from Amazon. I double-checked that it was a ADSL2+ modem before purchasing. It seems to work fine. Transfer rates are about the same as with the 831II.

nsmiller wrote:The DD-Link DSL-520B claims full ADSL2+ support. That would be 24 Mbps sync, for 20 Mbps throughput. My old ZTE 831II, which finally died, was good for 17.9 Mb sync on a 3,300 foot loop. The DSL-520B matches that; so I get 15 Mbps throughput.

Are you certain the ZTE 831B is ADSL2+? It sounds like what I was seeing when I put my old, SBC-issue SpeedStream 4100 in operation here.

3,300ft is pretty close. You should ask support to migrate you to VDSL2.

How would that affect my static IP address?

(nvm, problem solved)