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Author Topic: Recover/Reset password to DGS-1100-16  (Read 1396 times)

barrydsears

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Recover/Reset password to DGS-1100-16
« on: April 11, 2020, 03:41:38 PM »

Hi, I cannot login to my DGS-1100-16 box at 10.90.90.90.
I performed a factory reset. Afterwards, I tried the following username/password combo's: admin/<empty>, admin/admin, admin/password.
All failed to authenticate.
How do I recover/reset the username/password, please?
Thanks, Barry
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FurryNutz

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Re: Recover/Reset password to DGS-1100-16
« Reply #1 on: April 11, 2020, 09:57:07 PM »

Try a different browser or PC...
Be sure your'e resetting the switch with a full 10 second button press.
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barrydsears

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Re: Recover/Reset password to DGS-1100-16
« Reply #2 on: April 12, 2020, 05:43:51 PM »

Thanks for your help. I tried a different computer and browser but still no luck.

I need to fill you in on my attempts to recover the password for my switch:
1) First off, my ISP is Rogers.com and the default IP address of my modem is 10.0.0.1.
2) Prior to contacting this forum, I was able reach my switch at IP address 10.90.90.90. However, when I put in the default credentials, it failed. I did a factory reset by pressing and holding the reset button until the 16 LED lights flashed amber and then green. I did this several times and kept trying the following combinations: admin/<empty>, admin/admin, and admin/password. However, they all failed.
3) One of the times, I was prompted to upgrade the firmware.Thinking that loading new firmware might reset to the default username and password, I found an upgrade and loaded it. I found this file DGS-1100-SERIES_REVB_FIRMWARE_v1.01B053_HOTFIX.zip on the USA D-Link tech support website and loaded it. Once again though, I was unable to login.
4) During my research I found this forum and posted my question. However, prior to your answer, last night I connected with D-Link tech support via web-chat.
3)  The D-Link agent on the web-chat said that the two devices needed to have the same IP address values for the first 3 portions of the IP address (e.g. 10.0.0.X, or 10.90.90.X).
4) During the web-chat, I completely disconnected my switch and laptop from my home network. (I was still connected to the internet and web-chat via WiFi.) I connected the laptop directly to the switch. I set my laptop Ethernet adapter to 10.90.90.43 to match  the switch at 10.90.90.90. I was able to bring up the switch login screen. However, I was unable to login. At the agent's request, I tried all three username/password combinations above and they all failed.
5) At the agent's request, I pushed the reset button on the switch and held it for 1 minute. I then tried to login but once again the 3 combinations all failed.
6) The web-chat ended with the agent going off to investigate the hotfix firmware to confirm that it wasn't causing additional problems. I haven't heard back yet but, hey, it's a holiday weekend.I'm sure I'll hear when there is news.
7) I signed off the web-chat saying that I would reconnect my laptop and my switch to my network and set up a static IP for the switch in the 10.0.0.X range. I used the modem console app at 10.0.0.1 to configure the switch to be at 10.0.0.90. What's odd is that the modem console shows that static IP entry as being disconnected, even though it is physically connected. (And other devices downstream from the switch are recognized as connected via Ethernet.) When I try to reach the switch at 10.0.0.90 from my Chrome browser, I get a time-out error. What's worse is that the modem console app doesn't appear to have a means of removing the static IP assignment. I guess I'll do a factory reset the modem to clear that issue (hopefully).

Sorry for being long-winded but thought you might as well have the all story to this point, just in case it helps. Actually, there is one more point. When the switch was first installed, it was done by my son. I take it as self-evident that he changed the password, since the default no longer works. However, he doesn't recall the new value.

At this point, I've got 2 questions for you, please. First, I'd like to confirm if the modem and switch need to be in the same address space for first 3 portions of the IP address. I'm asking because previously when they were each using their default IP addresses (10.0.0.1 for the modem and 10.90.90.90 for the switch) I was able to bring up the switch login page.

Second, now that you've got the back-story, can you suggest next steps to recover the switch admin password?

Thanks again, Barry
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FurryNutz

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Re: Recover/Reset password to DGS-1100-16
« Reply #3 on: April 12, 2020, 06:52:04 PM »

Yes, your PC needs to be on the same sub net as the switch during it's initial setup.
When you configure the switch for being on a network system, it also need to be configured for the same subnet as your network services, i.e. 10.0.0.something. I set a static IP address on my DGS-1100 for 192.168.0.11.


So if you set a static IP address on your PC to the same as what the switch is using, disconnect the switch from the main network and wire connect your PC to the switch, holding the reset button for 15 seconds fails to let you use admin and blank password or what the default password is seen in the user manual? If so, I would ask D-Link for an RMA.

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barrydsears

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Re: Recover/Reset password to DGS-1100-16
« Reply #4 on: April 12, 2020, 07:21:49 PM »

Thanks so much for the confirmation about the sub net and the next steps.

I'm out of my warranty period so I'll cross my fingers about getting a Return Merchandise Authorization (RMA). That said, I will visit my point-of-purchase and discuss my situation with them.

I really appreciate your input though.

Cheers, Barry
« Last Edit: April 12, 2020, 07:31:12 PM by barrydsears »
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FurryNutz

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Re: Recover/Reset password to DGS-1100-16
« Reply #5 on: April 13, 2020, 06:03:04 AM »

Let us know how it goes.
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barrydsears

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Re: Recover/Reset password to DGS-1100-16
« Reply #6 on: April 13, 2020, 12:00:09 PM »

Hey, it is up and running and I've recovered my password.

My issue was that I didn't have compatible subnet parameters to permit the modem to talk with the switch.
My modem's default IP of 10.0.0.1 and my switch's default IP of 10.90.90.90 and my subnet mask was set to 255.0.0.0.

After I did factory resets on my modem and my switch, I changed the subnet mask on the modem to 255.255.255.0 (opened up all the addresses in 10.X.X.X range) and I was able to login to the switch with the default u/p. (Yipee!)

Once in, I changed the password. Then I changed the switch's IP address to put it on the 10.0.0.X segment. Then I changed back the modem's subnet mask to 255.0.0.0. So now I have access to the switch. Time to get out the manual and learn about its features.

While I was working through this issue, I found this article that was a helpful refresher on Subnets and IP addresses: https://www.routersecurity.org/ipaddresses.php

Thanks again for your support.
Regards, Barry
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FurryNutz

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Re: Recover/Reset password to DGS-1100-16
« Reply #7 on: April 13, 2020, 01:23:07 PM »

There a reason why your using 255.0.0.0 instead of 255.255.255.0. Can you set 255.255.255.0 as you default sub net mask on the Modem and switch? Something you might want to use instead of 255.0.0.0 as most managed switches an home routers use 255.255.255.0. Something to help if a reset is needed in the future, your modem and switch will be on the same subnet. And your modem doesn't need more than 254 host IP addresses. Unless your are a big business or enterprise network.

However good reminder of subnet mask. Something I presume is mostly not changed in most environments.

Thanks for the info.

« Last Edit: April 13, 2020, 01:28:20 PM by FurryNutz »
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barrydsears

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Re: Recover/Reset password to DGS-1100-16
« Reply #8 on: April 13, 2020, 01:26:30 PM »

Just personal preference to limit the number of addresses available on my home network.
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FurryNutz

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Re: Recover/Reset password to DGS-1100-16
« Reply #9 on: April 13, 2020, 01:29:32 PM »

255.0.0.0 would give you more host addresses, not less I believe.
Hosts/Net: 16777214

255.255.255.0 = Hosts/Net: 254
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barrydsears

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Re: Recover/Reset password to DGS-1100-16
« Reply #10 on: April 13, 2020, 01:37:40 PM »

I had things flipped. (Must be time for lunch.) Thanks!
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FurryNutz

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Re: Recover/Reset password to DGS-1100-16 (RESOLVED)
« Reply #11 on: April 13, 2020, 01:39:07 PM »

Enjoy.  ;)
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