Cisco DPC3825 Modem Owner's Thread - Page 6 - Canadian TV, Computing and Home Theatre Forums

mbmedic10050 · 2011-09-16, 05:37 PM

Hello everyone.

I wish to thank all the previous posters in this thread.

I recently upgraded to BB 50 and first received a SMC3GN moden/router. My roomate has a website he hosts on his server and has a Apple Airport Extreme router.

as you know, the SMC3GN needed to be flashed into bridged mode to disable the router functionality. to do that we spent 5hrs on hold with Shaw last night (no ring back option that time) before finally getting a TSR. We spent an hour on the phone with her, and at the end I think she was more frustrated then we were. She suggested I take the modem back to the Shaw office on scurfield here in winnipeg in the morning.

I did that, waited an hour and a half in the queue. finally got to a CSR, spent 30min with the CSR and left with a DPC3825. I had read some of the posts on this forum before hand and specifically asked for a modem that was already flashed to wired only or bridged. the CSR assured me that this was done and that the router portion was disabled.

I went home, hooked everything up, and unsurprisingly the wireless LEDs lit up. I tired disabling the wireless using the routers web interface, realised that was not working and checked this forum again, reading more carefully.

Based on the posts here I called shaw back again, and lucked out that I got the ring back option. only had to wait 1hr and 15min for the ringback. Got a TSR who was nice and friendly, and we spent 30min trying to get the modem to flash.

I am glad that "thinkmedia" wrote ...

Quote:

Stay on the line with them no matter what!!!
Once they have done their bit from the office, make sure you do a modem reset and the system will reboot and you should no longer see the green light on wireless. If this is still showing, it didn't take.
If the TSR doesn't know to tell you to reboot the modem....TELL them!!
My first TSR had no idea and the bridge didn't complete.
...
Only when you are 150% sure everything is gold, then and only then should you confirm with the TSR that they can go

Cheers!

It is because of that and other posts that I knew to reset the modem, the TSR told me it did not need a reset, to humor him I did it his way once, then told him about the reset, did it, and behold... it worked.

So once again thank you to everyone on the thread/forum for their informative posts. I now have the network working like it did before this supposed "upgrade"

Treebeard · 2011-09-20, 10:23 AM

I upgraded to BB100 with the Cisco DPC 3825 on Saturday. A wired connection to the router gave me a maximum download speed of 63.7. A wireless connection, sitting next to the modem nets me a maximum speed of 16.32. My iMac, one floor up from the Cisco is only able to achieve 7.64 download, although is shows a very strong signal. The wireless numbers are no better than what I had before with Shaw Extreme. Not a happy camper here.

What kind of wireless download speeds can I reasonably expect?
Should I ask Shaw to bridge the router and use my existing D-Link? If not the D-Link, what is a good wireless router?

tux · 2011-09-20, 12:15 PM

If all of your wireless devices support Wireless N (some may not), then they should all be able to receive speeds comparable to your wired connection. However, I would have expected higher wired speeds from BB100, closer to the 80s or 90s.

The wireless speeds that you reported are consistent with what you may achieve using Wireless G (the one next to the modem) or Wireless B (for your iMac). Check what kind of wireless these devices support, and also check the router settings: Network Mode B+G+N, WPA or WPA2, AES or TKIP+AES (not TKIP only).

Treebeard · 2011-09-20, 01:53 PM

Tux, the wired speeds are definitely less than what I would expect. I also have a Shaw Gateway which was previously cabled incorrectly, with the cable modem inside the MoCA filter. I thought I remedied that by adding another splitter between the main cable entrance to the house and the filter, and running the cable modem from the splitter. This definitely did increase the wired performance from the 3 Mbps I was getting, but apparently a call to Shaw is still in order.

Regarding the iMac, I believe it does support wireless n, but the funny thing is, when I went into the Cisco wireless configuration, it did not list n. As I recall, the choices were, Mixed, B+G mixed, or B+G. Is the wireless mode dependent on the encryption mode?

tux · 2011-09-20, 08:25 PM

According to the Cisco manual, Wireless N isn't an option if your encryption is set to "TKIP only". The Wireless N standard also requires using either AES or no encryption.

brettski · 2011-09-24, 08:29 PM

Received the Cisco DPC3825 via Expedited Parcel (ordered BB50 Wednesday evening, received DPC3825 in Edmonton Friday noon). Today (Saturday) phoned and waited only a little over an hour for a callback. The TSR knew what I wanted when I asked for Bridge Mode, and the fun began. After several attempts, a reboot of the Cisco, a reboot of the router, and 2 resets of the Cisco, the green "Wireless - Link" light finally went out. However, this is where it is interesting - port (Ethernet) 4 continually flashes orange and no other port (Ethernet) lights up. He had me try all 4 ports and they all worked - all output to the router at similar speeds of 40+. I have settled on using port (Ethernet) 1 and all wireless in the home work fine. He could not solve this, and finally told me since everything was working, to let it go. He told me that if I tried to use other ports at the same time, there would probably be a decrease in speed at each port.
I asked him if you are using port 1, isn't a green indicator light supposed to light up on that port; but he never actually answered the question. Can anyone here answer that? Thanks.

Cudtz · 2011-09-25, 02:55 PM

if someone else already answered this then ok. I got the dpc3825 a couple weeks ago, expecting to have to call in and have it provisioned and flashed into bridge mode: when I got home and set it up...... it was already in bridge mode with 2 ip adresses. No idea why, doesn't sound like the norm, but I'm not complaining. so from personal observation I'd have to say it is indeed possible. Part of the reason I found out was because I could not log into 192.168.0.1 when connecting directly to the cisco, that and the fact that my router worked seamlessly as soon as i connected the cisco to it's wan port. I did find another log in screen..... but don't have the username or password

oh well, it works and I didn't have to reinvent my network.

clipper99 · 2011-09-28, 01:56 PM

Just had an issue with my neighbours 3825 but a little background first.

I have one, and another 2 friends have them as well after my recommendation they upgrade to BB50 and I've installed all of those with no problems.

Back to my neighbour. Couldn't get it to work at all. All lights (but no wireless lights) were lit up as expected but could not communicate at 192.168.0.1. After checking the NIC connections on the computer and running an IPCONFIG /ALL command the DHCP server said it was at 192.168.100.1. So I type that address into my IE address bar and get the login screen but it will not take the factory default user name and PW so I figured that it was a return from a previous customer and they (Shaw) didn't reset it. Attempts to reset it back to factory default were unsuccessful though so he's on his way back to the local office for a new one.

Is it possible this was set to bridge mode? Since only a Shaw tech can set these to bridge mode is is probable then that they also have to "unset" it and pressing the reset button wouldn't work?

cheers

SeOx · 2011-09-28, 02:44 PM

If IP is 192.168.100.1 your modem is in bridge mode. To access to the modem in this mode usually you need to disconnect the cable from it and probaby unplug and plug the power (take 10 sec before plug it back just in case).

To reset the modem press and hold reset button about 20 seconds. By the manual the time should be at least 10 seconds. Modem should reset evrything to factory default including login. Remember, if the holding time is short, then modem will just restart itself without restore to factory defaults.

clipper99 · 2011-09-28, 03:18 PM

Hmmmm, he actually went and got a 2nd unit and guess what? Yup, it too is in bridge mode. There are 2 reset buttons but one is for wireless and is just a regular button to press and I can probably safely assume that is not the correct one.

The recessed reset button is the one to use and I have held that thing down for at least a minute, and also done the 30-30-30 reset method.

Going over to his place now for another attempt to get this thing out of bridge mode and will report back.

tux · 2011-09-28, 03:38 PM

You won't be able to get the modem out of bridge mode on your own. If you want to use the modem as a router, you need to call up Shaw, and then Shaw needs to take the modem out of bridge mode.

clipper99 · 2011-09-28, 03:45 PM

LOL, was just logging on to see if that was the case as I am about to throw this thing out the window!!!

What a major pain in the rear end! Both modems he has brought home are in bridge mode when the previous 3 myself and 2 friends got were configured properly! GRRRRRRRR......

but hey, thanks for confirming my suspicions and saving me further grief! cheers!

SeOx · 2011-09-28, 05:10 PM

Actually, you can switch back from bridge to router mode. If you are in bridge mode, you can access the modem at IP: 192.168.100.1. If you cannot reach it when everything connected, try to unplug the power, then disconnect the cable, and plug the power back. Connect computer to the modem via wire, start the computer to be sure that it will catch new IP.

Then in computer browser go to 192.168.100.1, and you should see the logon page from the modem. I am with Rogers and it provides the admin access to the modem. It will be only one page to setup after login where you can switch back to the router mode.

Don't forget to connect the cable back after all done.

sonyxbr · 2011-09-28, 07:28 PM

just upgraded to bb50 & got the cisco 3825 was told they would send it out in bridge mode but it came wireless enabled, log in to the settings & in setup there is Wireless Network: Enable Disable clicked disable & now no wireless, is there any advantage to getting Shaw to flash it to bridge mode ?

tux · 2011-09-28, 08:11 PM

The main advantages of bridge mode are that you can use your own router instead of the modem's built-in router, and you can also receive a public IP address instead of a private 192.168 IP address. Instead of acting as a router, the modem acts as a straight pass-through device.

2011-09-20, 10:23 AM	#77
Treebeard Join Date: Oct 2003 Posts: 204	Poor wireless speeds I upgraded to BB100 with the Cisco DPC 3825 on Saturday. A wired connection to the router gave me a maximum download speed of 63.7. A wireless connection, sitting next to the modem nets me a maximum speed of 16.32. My iMac, one floor up from the Cisco is only able to achieve 7.64 download, although is shows a very strong signal. The wireless numbers are no better than what I had before with Shaw Extreme. Not a happy camper here. What kind of wireless download speeds can I reasonably expect? Should I ask Shaw to bridge the router and use my existing D-Link? If not the D-Link, what is a good wireless router?

2011-09-24, 08:29 PM	#81
brettski Join Date: Apr 2006 Location: Edmonton; Shaw Posts: 210	4 ports live in Bridged Mode Received the Cisco DPC3825 via Expedited Parcel (ordered BB50 Wednesday evening, received DPC3825 in Edmonton Friday noon). Today (Saturday) phoned and waited only a little over an hour for a callback. The TSR knew what I wanted when I asked for Bridge Mode, and the fun began. After several attempts, a reboot of the Cisco, a reboot of the router, and 2 resets of the Cisco, the green "Wireless - Link" light finally went out. However, this is where it is interesting - port (Ethernet) 4 continually flashes orange and no other port (Ethernet) lights up. He had me try all 4 ports and they all worked - all output to the router at similar speeds of 40+. I have settled on using port (Ethernet) 1 and all wireless in the home work fine. He could not solve this, and finally told me since everything was working, to let it go. He told me that if I tried to use other ports at the same time, there would probably be a decrease in speed at each port. I asked him if you are using port 1, isn't a green indicator light supposed to light up on that port; but he never actually answered the question. Can anyone here answer that? Thanks.

2011-09-28, 07:28 PM	#89
sonyxbr Join Date: Oct 2002 Location: Calgary Posts: 66	Wireless Network: Disable just upgraded to bb50 & got the cisco 3825 was told they would send it out in bridge mode but it came wireless enabled, log in to the settings & in setup there is Wireless Network: Enable Disable clicked disable & now no wireless, is there any advantage to getting Shaw to flash it to bridge mode ?

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2011-09-20, 12:15 PM	#78
tux Join Date: Mar 2006 Location: Winnipeg Posts: 757	If all of your wireless devices support Wireless N (some may not), then they should all be able to receive speeds comparable to your wired connection. However, I would have expected higher wired speeds from BB100, closer to the 80s or 90s. The wireless speeds that you reported are consistent with what you may achieve using Wireless G (the one next to the modem) or Wireless B (for your iMac). Check what kind of wireless these devices support, and also check the router settings: Network Mode B+G+N, WPA or WPA2, AES or TKIP+AES (not TKIP only).

2011-09-20, 01:53 PM	#79
Treebeard Join Date: Oct 2003 Posts: 204	Tux, the wired speeds are definitely less than what I would expect. I also have a Shaw Gateway which was previously cabled incorrectly, with the cable modem inside the MoCA filter. I thought I remedied that by adding another splitter between the main cable entrance to the house and the filter, and running the cable modem from the splitter. This definitely did increase the wired performance from the 3 Mbps I was getting, but apparently a call to Shaw is still in order. Regarding the iMac, I believe it does support wireless n, but the funny thing is, when I went into the Cisco wireless configuration, it did not list n. As I recall, the choices were, Mixed, B+G mixed, or B+G. Is the wireless mode dependent on the encryption mode?

2011-09-20, 08:25 PM	#80
tux Join Date: Mar 2006 Location: Winnipeg Posts: 757	According to the Cisco manual, Wireless N isn't an option if your encryption is set to "TKIP only". The Wireless N standard also requires using either AES or no encryption.

2011-09-25, 02:55 PM	#82
Cudtz Join Date: Sep 2011 Location: Canada:Sony,Samsung,Panasonic TV's.Gateway + 3 Portals,Tube TV -HD Box(moto),VAIO,PS3,BR,Sling,Cisco Posts: 38	if someone else already answered this then ok. I got the dpc3825 a couple weeks ago, expecting to have to call in and have it provisioned and flashed into bridge mode: when I got home and set it up...... it was already in bridge mode with 2 ip adresses. No idea why, doesn't sound like the norm, but I'm not complaining. so from personal observation I'd have to say it is indeed possible. Part of the reason I found out was because I could not log into 192.168.0.1 when connecting directly to the cisco, that and the fact that my router worked seamlessly as soon as i connected the cisco to it's wan port. I did find another log in screen..... but don't have the username or password oh well, it works and I didn't have to reinvent my network.

2011-09-28, 01:56 PM	#83
clipper99 Join Date: Apr 2006 Location: Campbell River Posts: 45	Just had an issue with my neighbours 3825 but a little background first. I have one, and another 2 friends have them as well after my recommendation they upgrade to BB50 and I've installed all of those with no problems. Back to my neighbour. Couldn't get it to work at all. All lights (but no wireless lights) were lit up as expected but could not communicate at 192.168.0.1. After checking the NIC connections on the computer and running an IPCONFIG /ALL command the DHCP server said it was at 192.168.100.1. So I type that address into my IE address bar and get the login screen but it will not take the factory default user name and PW so I figured that it was a return from a previous customer and they (Shaw) didn't reset it. Attempts to reset it back to factory default were unsuccessful though so he's on his way back to the local office for a new one. Is it possible this was set to bridge mode? Since only a Shaw tech can set these to bridge mode is is probable then that they also have to "unset" it and pressing the reset button wouldn't work? cheers

2011-09-28, 02:44 PM	#84
SeOx Rookie Join Date: Sep 2011 Location: Kitchener, ON Posts: 3	If IP is 192.168.100.1 your modem is in bridge mode. To access to the modem in this mode usually you need to disconnect the cable from it and probaby unplug and plug the power (take 10 sec before plug it back just in case). To reset the modem press and hold reset button about 20 seconds. By the manual the time should be at least 10 seconds. Modem should reset evrything to factory default including login. Remember, if the holding time is short, then modem will just restart itself without restore to factory defaults.

2011-09-28, 03:18 PM	#85
clipper99 Join Date: Apr 2006 Location: Campbell River Posts: 45	Hmmmm, he actually went and got a 2nd unit and guess what? Yup, it too is in bridge mode. There are 2 reset buttons but one is for wireless and is just a regular button to press and I can probably safely assume that is not the correct one. The recessed reset button is the one to use and I have held that thing down for at least a minute, and also done the 30-30-30 reset method. Going over to his place now for another attempt to get this thing out of bridge mode and will report back.

2011-09-28, 03:38 PM	#86
tux Join Date: Mar 2006 Location: Winnipeg Posts: 757	You won't be able to get the modem out of bridge mode on your own. If you want to use the modem as a router, you need to call up Shaw, and then Shaw needs to take the modem out of bridge mode.

2011-09-28, 03:45 PM	#87
clipper99 Join Date: Apr 2006 Location: Campbell River Posts: 45	LOL, was just logging on to see if that was the case as I am about to throw this thing out the window!!! What a major pain in the rear end! Both modems he has brought home are in bridge mode when the previous 3 myself and 2 friends got were configured properly! GRRRRRRRR...... but hey, thanks for confirming my suspicions and saving me further grief! cheers!

2011-09-28, 05:10 PM	#88
SeOx Rookie Join Date: Sep 2011 Location: Kitchener, ON Posts: 3	Actually, you can switch back from bridge to router mode. If you are in bridge mode, you can access the modem at IP: 192.168.100.1. If you cannot reach it when everything connected, try to unplug the power, then disconnect the cable, and plug the power back. Connect computer to the modem via wire, start the computer to be sure that it will catch new IP. Then in computer browser go to 192.168.100.1, and you should see the logon page from the modem. I am with Rogers and it provides the admin access to the modem. It will be only one page to setup after login where you can switch back to the router mode. Don't forget to connect the cable back after all done.

2011-09-28, 08:11 PM	#90
tux Join Date: Mar 2006 Location: Winnipeg Posts: 757	The main advantages of bridge mode are that you can use your own router instead of the modem's built-in router, and you can also receive a public IP address instead of a private 192.168 IP address. Instead of acting as a router, the modem acts as a straight pass-through device.