Safari and motorola cable modem with wireless (gateway) sbg900

why can't i connect to the internet with safari using a Motorola SBG900 Wireless Cable Modem, while i can using internet explorer?
arnie
Powerbook G4 Mac OS X (10.4.9)

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Ae and motorola cable modem

hello all!
i have a comcast motorola SB5120 cable modem, as well as an iBook g4 and a dell inspiron e1405 (xp & sp2)
i bought an ae today so that both computers could connect to the internet, the printer and the stereo (iTunes). the ibook can see the ae but cannot connect to the internet. the dell cannot connect to the ae, so the only way to connect to the internet presently is to plug the ethernet cable from the modem directly into the dell.
anyone have any ideas on how to solve this conundrum?

i let everything sit overnight. the dell can see the ae now and i was able to play iTunes through the stereo, but still no internet connection unless i plug the motorola router directly to the dell.
i called comcast and they said from their end it appears that something is blocking the modem - i assume it's the ae, but i'm not sure why that would be happening. am i supposed to have a secondary router in between the modem and the ae? (that doesn't make sense to me)
and the mac can't even play iTunes through the stereo, but one problem at a time :-/

WRT54GS with Mac OS 10.6.8 and RCN cable modem not working

Hello,
I have a Linksys WRT54GS, version 6 with Mac OS X (version 10.6.8) hooked up to a Scientific Atlantic cable modem, with RCN as the ISP.
Recently, RCN had some network issues, and so I had to power down and reset my modem. The modem is working fine now -- no problems at all when the Mac is connected direclty to the modem.
The router's network is OK in that I can connect the Mac wirelessly to the network, but I can't connect to the internet through the router (through neither the wireless or wired connection).
I have downloaded the latest firmware update for the router, following the Linksys site instructions, but this has not helped me solve the problem.
Does anyone have any advice as to what I should do? I did call Linksys tech support on the advice of RCN, and they said that the router does appear to be working (power, WLAN, and Internet lights are on), but they would be charging me nearly the cost of a new router to fix the problem.
Any advice would be appreciated!

Since you upgraded the Router WRT54GS with the latest firmware so once reset the Router and power cycle the whole network… Then connect the Modem with Linksys Router on the Internet Port and then connect any one computer to any one of the Ethernet port on the Router [Numbered – 1, 2, 3 and 4]… Let me know the RCN connection is a DSL connection or cable connection…
So if you have a DSL connection you can refer to this link:
http://www6.nohold.net/Cisco2/ukp.aspx?pid=93&login=1&vw=1&app=search&articleid=4020&userrole=Linksy...
So if you have a Cable Internet Connection you can refer to this link:
http://www6.nohold.net/Cisco2/ukp.aspx?pid=93&vw=1&articleid=3686
As far as the wireless is concern:
# Open up the browser and on the address bar type 192.168.1.1 that will open up the Router setup page…
# Then Click on wireless Tab create the Wireless Network Name SSID and select the channel to 6, 9, and 11… Click Save Settings...
# Then Click on Wireless Security sub tab and select the security mode and provide the password as per the requirement… Click Save Settings...
After doing the settings try to connect the preferred network on the wireless devices and check the connectivity….

Severe interference between Airport Extreme (802.11n) and my Cable Modem

This post is in reference to http://discussions.apple.com/thread.jspa?threadID=897496&tstart=30
The root cause of the problem reported in the above post was determined to be a case of severe electrical interference between the 802.11n device and a Motorola Cable modem supplied by Comcast. I can provide the modem model number for anyone wanting it.
I found that at least 12" spacing is required between the 802.11n and the modem to avoid any significant interference.
I also found that if these two devices are physically adjacent the data rate performance thru the modem can reduce to almost zero.
I speculate that the 802.11n is radiating so much radio energy that it causes electrical interference with the modem's function.
N.B. The Airport Snow does not exhibit this same electrical interference.

I would connect the xbox 360 to the Airport Extreme with an ethernet cable and from the Airport Extreme back to my router would be wirelessly.
If you intent to connect the 802.11n AirPort Extreme Base Station (AEBSn) wirelessly to the router, this router would have to be another AirPort or one of a very few non-AirPort products that will work in a Wireless Distribution System (WDS).
Would this cause any latency problems?
Most likely, but that will depend on the two routers used in the WDS. If both are AEBSns, then the throughput performance would be competitive with at least 10baseT or 100baseT Ethernet. If not, then using an Ethernet cable may be the better option.

WRT54GS slamming Cable modem with Packets

I'm having trouble with my WRT54GS locking up my Cable Modem. TWC says its slamming the cable modem with too many packets. Is there any way to check this on my end? Full story below.
A little about my set up. I have Time Warner Cable business class Roadrunner service. 5 Static IPs. 4 being used at the moment. The Cable modem has a 4 port switch built in. Port 1 has a month or so old WRT54GS router v7 latest firmware (Gateway mode, Channel 6). Port 2 goes to my Sonicwall Barracuda them my internal network which also has WRT54GS router v7 latest firmware (Router mode, Channel 1). Both routers are sitting next to each other. Ports 3 & 4 have a Vonage Router hooked to each of them.
I started having trouble April 5 with the Internet being down that morning, then that night and falling morning. I power cycled the Cable modem to restore service. Called Time Warner Cable after the third reset. They told me that didn't see anything wrong from their end and I should call them when it is down. I did this and they said they would send someone out the next morning Friday. They came out on Friday morning and Checked cable which the tech said was fine so he replaced the Cable modem around 11:30. Fifteen minutes after he left the internet went down. I called TWC again. They did diagnostics on the cable modem from their end and saw that whatever was hooked up to port 1 was sent out 400 packets/sec. I think they said the cable modem could only handle 300. Port 1 is connect a WRT54GS v7 (latest firmware). We are using it for our Blackberries from Cincinnati Bell for WIFI and UMA service (like T-Mobiles @Home service) for VoWiFi. I turned off all the phones but the router was still slamming the modem with packets. I turned off the WiFi just in case someone hacked our WPA2 key. Still slamming the router with packets with only my laptop hardwired to it for setting up the router. I turned off the router and the modem wasn't getting hammered anymore. Port 2 which is my internal network was only up to 150 after open a lot of TV shows. Ports 3 & 4 nothing. I disconnected the WRT54GS hooked to Port 1.
15 minutes after I got off the phone with TWC internet goes down. They send out a tech on Saturday to check the line again. he sees a slight problem on the line but it should not be causing a problem which the first guy might have thought. But since I am having trouble he goes outside and checks the connections. He finds loose connection and a bad line cap (blocking cable TV). He fixes the connections and replaced the line cap. He comes back inside and rechecks the line. Everything is great no more fluxation of signal or packet loss. I hook the WRT54GS back but it still takes down the modem. So I figure that it's just bad. So I take the WRT54GS from my internal network and set it up to match the one for the Blackberries it's replace. I install a WAP54G on the internal network in it's place. I can't get my Blackberry to get a UMA connection and doing Google searched find this page
http://www.blackberryfaq.com/wiki/index.php/Linksys_Router_Tips
I set up my router and Assess point with the setting from the above except the channel setting leaving them on channel 6 & 1 so they don't interfere with each other. Set: Fragment Threshold : 2304 (256-2346), RTS Threshold : 2304 (0-2347) and Beacon Interval : 50 (20-1024 ms). I also Enable WMM QOS. My phone connects and internet seems to be staying up Saturday Evening. I come to work Sunday afternoon and Internet is still up. I check my phone I have UMA signal and everything is right with the world. 20 minutes later internet goes down. I unplug the WRT54GS and power cycle the cable modem. I am now waiting to see it the internet will stay up without any WRT54GS hooked up.
I have not had a problem before and both Linksys are not even 6 months old. I have read review were people have had trouble with the WRT54GS. Were some people have no trouble will other all kinds of trouble.

As you said cable connected to the pc is working fine!!...connect modem to the router WRT54GS...reset the router once (30 secs) in such a way that Power light on the router is blinking...power cycle complete network i.e., unplug modem & router power cable for 30 secs...plug in modem power cable once lights are solid green plug in the power cable to the router...its important that after upgrading firmware resetting the router is important...so try this & it should deifnately work.Do the wireless & advanced wireless settings as router is currently in default settings.
Also, you want to connect your access point WAP54G to the router & open the setup page of WAP54G using 192.168.1.245 do the wireless settings & try connecting to the wireless router & then check....should work.

* Share One Cable Modem with 2 Airport Networks ??? *

I'd like to have my one Motorola cable modem shared with an Airport Extreme G base station and an Airport N base station on 2 seperate Airport networks (G and N). Is this possible?
If not, if anybody has any ideas for a workaround, that would be great.
- thanks in advance.
Ted.

Yes.
Just connect the cable modem to the WAN port of the first AirPort Extreme base station (AEBS).
Then connect the WAN port of the 2nd AEBS to the LAN port of the first AEBS.
Configure the 2nd AEBS so that it is acting as a bridge (not distributing IP addresses).
You can find reference to this setup in threads describing a "dual-band" network. Also Apple's documentation describes this setup.

Can't connect to internet, Motorola cable modem seems to freeze

I have had this problem more and more fequently the past three or four weeks: I'm connected to the internet by ethernet through a motorola cable modem (SB5101). As long as the PC activity light on the modem is rapidly flashing amber things are fine. As soon as the activity light goes solid amber with no flashing I can no longer connect to the internet or send or receive mail. During one of these "freezes" when I check network status in the network pane of system preferences the light beside ethernet is yellow and the message says-"Built in ethernet is currently active. Built in ethernet has a self assigned IP address and may not be able to connect to the internet." When I check when my connection is working I get a green light and this message "Built in ethernet is currently active and has the IP address 70.44.etc. etc.(not sure if I should make the whole IP address public or not)You are connected to the internet through built in ethernet." I also notice when I check the Built in ethernet under network in sytem preferences that the IP address changes depending on whether the modem seems frozen or not. When disconnect the power to the modem and reconnect, I notice that within about two minutes the IP address changes and I can get back online again. Or at least I could. last time I did this the IP address did not change and I couldn't get back online. Now I'm using my iBook connected via ehternet, which is working fine for now (past 15 minutes). When I first plugged the iBook into the ethernet (I normally connect to the iBook through a snow airport, which I've disconnected to try to isolate this problem) I got this message(with an exclamation in a stop sign)-"IP configuration- 70.44.53.etc in use by 00:01:50:23:3e:c2 DHCP server24.229.54.226". I clicked through the box, and the iBook is still connected to the internet and working. I have contacted Motorola tech support, and it seems the modem is OK. I will contact my cable company next, but I don't have high hopes. Any help would be greatly appreciated.

sig-
Thanks for your reply to my post. I was able to get back on the internet with the G4 using your suggestion, but the modem continues to freeze, whether connected to the iBook or the G4, using ethernet or airport. I will contact my ISP.

My motorola cable modem reset itself every 15 or 30 minutes

why does my motorola cable modem (sb6141) reset itself every 15 or 30 minutes everyday?

Start with the modem's signal stats. Perhaps they already are, or they are close to being out of spec and intermittently they go completely of spec. Try getting them here http://192.168.100.1
Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

HT5569 Hi is it possible to install and setup a modem with an iPad only, I would appreciate an answer to this question thanks

Hi is it possible to install and setup a modem with an iPad only, I would appreciate an answer to this question thanks

The configuration page of my router on Safari (tap to enlarge)
See IP Adress at the top (center)

Time Capsule 4 gen. with iMac OS X Lion 3 Windows PC (XP OS, Vista OS, Seven OS) cable modem with TC as Wi-Fi. Time Machine on iMac found TC for backup easily. Have Wi-Fi access on PC XP with Airport utility but cannot create TC.

Installed today Time Capsule 4 gen. with iMac OS X Lion. I also have 3 Windows PC (XP OS, Vista OS, Seven OS). Internet Access is cable modem with TC as Wi-Fi. Time Machine on iMac found TC for backup easily. Have Wi-Fi access on PC XP with Airport utility but cannot create TC. Does the Airport utility under Windows is way to access backup capabilities with TC ?

The TC is really just an external networked hard disk plus router.. you can access the hard disk and place files on it from any computer. You can backup any computer to the TC but it will have to use a backup software in windows.. there are literally thousands available. The built in msbackup is horrible.. but you can download lots of different software and buy then online for not a lot. Macrium Reflect has a free disk image backup, and when you pay for it includes incremental. I think disk images are well worth it, as they recover much better.. and their is a proper method of recovery using a boot cd.
BTW the TC space is not endless. And it is designed to hold a large number of incremental backups.. so anything you do in backing up several machines will make the number of backups limited. Remember you can also use a usb hard disk plugged in as a Network accessible disk. But it has to be formatted HFS+ or Fat32.. the later being highly undesirable.

I have a cable modem with wifi, do I have disable it to use ap extreme?

I have a cable modem with wifi, do I have disable it to use ap extreme?

Thanks! I use a Roko in my bedroom to watch baseball, Netflex etc., but in my family I have an Apple TV which cannot load either of the two.
I have not bought the AirPort Extreme yet, but will cable my cable company first.
Any other recommendations?
Thanks,
PJohnny

Help with extending the range of Motorola cable modem

After struggling with AT&T DSL (with slow speed and intermittent drops), I switched to Time Warner Cable, and now sport blazing-fast connection via Ethernet cable into my 27" iMac. They gave me a Motorola Surfboard sbg6850 wi-fi modem, but I'm finding the range of the wi-fi to be totally inadequate... I get drops and unreliable connections only 20 feet away with iPads and Macbooks. I want a pleasing dome of wi-fi all over my house!
Through other discussions on this board, I see that Airport Express is NOT compatible with the Surfboard, a fact which surprised and disappointed me. What are my options for extending the wi-fi range?
—Could I buy a non-Apple product (router) to extend the wireless range? Can it be managed from a Mac?
—Could I connect an Airport Extreme to the Surfboard via Ethernet cable, and use the Airport Extreme as the router to extend the network via Airport Express?
—Could I use the Airport card in the ethernet-connected computer (in this case, a 27" iMac) to create a network that COULD be extended via Airport Express? (I'm using it now to share the Internet, rather than connecting directly to the Surfboard, but when the iMac sleeps, the network is unavailable.)
There's got to be a way...

Since you went with your option 2, you basically have the fundamentals for a roaming network as both routers are interconnected by Ethernet. This also means that the 802.11n AirPort Extreme Base Station (AEBSn) should be reconfigured as a bridge, i.e., Connection Sharing = Off (Bridge Mode) in AirPort Utility (v5.x). This would allow the TW combination cable modem / wireless router (or gateway) to provide both NAT & DHCP services for the entire network.
Now with the AEBSn configured as a bridge, you can add the 802.11n AirPort Express Base Stations (AXn), via a wireless connection to the AEBSn, in an extended network configuration. Note: The extended network works in a "wheel" like fashion with the extended base station at the hub of the wheel. Each extending base station would be spokes on that same wheel ... so how successful you will be extending the wireless network will be based on proper placement of each of the extending stations for full coverage. Please take a look at the following AirPort User Tip for proper placement details.
The other thing to take into account is the potential Wi-Fi interference between the TW wireless gateway and the AEBSn. Either disable the gateway's wireless radio, or be sure to allow for sufficient radio channel separation between radios on the same band.

Trouble connecting AEBS with Cox & Motorola cable modem

I am able to set up my new AEBS however I cannot connect to internet. I am told via Airport Utility that I have set up correctly and have the steady green light and the wireless connection however it just won't pick up the Internet. I've called my ISP Cox Communications and they told me it's an issue w/my router. I noticed a similar problem in discussion boards with Comcast and followed the same instructions and it did not resolve. I've tried to power off cable modem for 10 sec, 2 min and 10 min and just no luck. I immediately plug back in my Linksys router and am able to connect to internet just fine.
Anyone know what to do?

Magand wrote:
I've tried to power off cable modem for 10 sec, 2 min and 10 min and just no luck. I immediately plug back in my Linksys router and am able to connect to internet just fine.
Anyone know what to do?
Power off your cable modem for at leat 10 HOURS! Cox like every other ISP "caches" the MAC address of your router. The only way to "reset" this and allow a new MAC address to be accepted, is to turn off the cable modem overnight for 8-10 hours.
Some routers have the ability to "clone" a previous router MAC address, therefore not requiring the above process, but the AEBSn does NOT have this capability.

Cannot see Mac Mini Server from Internet: DynDNS alias gets thru cable modem to wireless router, not to the Mac Mini. How to configure?

I want to make my Mac Mini Server (Lion) visible to the Internet from my home LAN. I have followed the Lion server install wizards and also set up a dynamic DNS at DynDNS.com.
When I enter the Internet address with the proper alias from a web browser, I get dumped into the admin screen of the Linksys wireless router WRT300N. Hint: the WRT300N provides DHCP for the LAN, not the cable modem providing DHCP. The WRT300N has DDNS service set up. NAT and RIP are disabled. The Mac Mini DHCP is reserved.
Suggestions? I could use the Motorola Surfboard SB6121 to provide DHCP but have hesitations.
Point me to the right discussion/article and get me back on track, please.

This sounds like a simple port forwarding issue, but I don't understand your LAN setup.
The WRT300N has DDNS service set up. NAT and RIP are disabled.
The chances are, you're running NAT somewhere in your network. If not the WRT then what? If it's your cable modem then you must have port forwarding configured on the cable modem, and that's where you need to focus - change the port forwarding to point to your Mac Mini's address rather than the WRT.
HOWEVER, it is far more common to have the wireless router perform NAT and DHCP, which is why I question your setup.
Not directly related, but:
The Mac Mini DHCP is reserved
Nix this. Your server should be configured manually, with a static IP address, not DHCP, even with a reservation in the DHCP server. The only advantage of DHCP is for dynamic hosts (hence the 'D' in 'DHCP') or if you expect to change your entire local subnet on any kind of frequent basis. The reality is that you can't just change the IP address of Mac OS X Server like this - there are too many dependencies, so it's better to set it manually, knowing that there's a cost (and pain) to change the server's address.

One cable modem tow wireless routers in my house --- is this possible?

I'd like to use two wireless routers to fully cover my house with wireless access. I have a WRT5462 v1 wireless router that I connected directly to the cable modem, and then connected a second wireless router to one of the CAT 5 ports in the first, with the CAT 5 going into the "Internet" port in the second, which is a WRT610N v1. The first router works fine, but the second does not provide internet connectivity to the devices that connect to it.
I suspect I need to make modifications to the Internet Connection Type in the Basic Wireless Configuration - I changed from DHCP to a Static IP of 192.168.1.2, but this didn't work. Any help and direction greatly appreciated
Solved!
Go to Solution.

Thank you very much for you response. Done the set-up as you described, with 1 exception: The WRT54G2 v1 doesn't allow me to reserve an IP address in the DHCP Server settings section. Therefore, I set up its Network as 192.168.1.2-192.168.1.49
That said, the 2nd router is set up with that IP address, and I can connect to it both vie Ethernet and wireless, and it is supplying IP addresses via its DHCP server address accordingly. However, no access to the Internet (via the first router).
Now, when I set up router 2 as a static IP, I'm asked to enter an "Internet IP Address", which I've specified as the 192.168.1.2 as you indicated. I'm then required to enter a subnet mask and default gateway, and then DNS 1, DNS2 (Optional), DNS3 (Optional)
Not knowing what I should enter here, I entered 255.255.255.0 for the subnet mask, and 192.168.1.1 (address of the first router) as default gateway.
Any suggestions on what I'm doing wrong?

Safari and motorola cable modem with wireless (gateway) sbg900

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