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Forum Discussion
LukeDouglas
Jan 12, 2016Aspirant
Netgear WNDR4000 and Comcast Cisco DPC3941T problem
I have Comcast X1 service using a Cisco DPC3941T Wireless Modem. This is located in my home office at one end of my home. I have a Netgear WNDR4000 wireless router connected directly via Ethernet w...
- Jan 13, 2016
Reset passwordSave this for later just adds to the confusionSetup Wireless SSID's (didn't want anyone nearby to log in)
I don't either one of these is a big issue and, certainly, should not be an issue with viewing computers. If I didn't setup the Wireless SSID's, then I couldn't connect with my laptop to test the ability to view all computers from my work computer, no matter which SSID they are connected.
Thanks for confirming that the AP mode disables all DHCP functionality.
- My laptop was recognized as connected (directly) Connected to what?
Sorry for the confusion. When I go into my Cisco modem admin panel, it shows as a connected device.
Is work PC USING VPN and connected to work? IF SO YOU CANNOT REACH LOCAL RESOURCES when using VPN
Not connected to a VPN. I have worked for myself for over 45 years. Hate bosses. :)
I did some pinging from my work desktop computer connected to the Cisco modem.
Pinged Netgear Router (AP) 10.0.0.2:
Pinging 10.0.0.2 with 32 bytes of data ;
Reply from 10.0.0.252: Destination host unreachable.
Reply from 10.0.0.252: Destination host unreachable.
Reply from 10.0.0.252: Destination host unreachable.
Reply from 10.0.0.252: Destination host unreachable.
Ping statistics for 10.0.0.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Pinged Laptop when connected to one of the Netgear SSID's - IP 10.0.0.223:
Pinging 10.0.0.223 with 32 bytes of data ;
Reply from 10.0.0.223: bytes=32 time=266ms TTL=128
Request timed out.
Reply from 10.0.0.223: bytes=32 time=43ms TTL=128
Reply from 10.0.0.223: bytes=32 time=479ms TTL=128
Ping statistics for 10.0.0.223:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 43ms, Maximum = 479ms, Average = 262msSo it can't ping the Netgear AP but it can ping the Laptop connected to the Netgear AP. Weird!
I went back into my Windows Explorer on my desktop, clicked on the Network, and I can see the Laptop. I'm not sure why I couldn't see it last night but I can now. However, if I go into my Windows Explorer on my laptop, click on the Network, I cannot see my work desktop computer.
So on my laptop computer connected wirelessly to the Netgear AP SSID, I did some pings.
Pinged 10.0.0.1 - Cisco Modem:
Pinging 10.0.0.1 with 32 bytes of data ;
Reply from 10.0.0.1: bytes=32 time=18ms TTL=64
Request timed out.
Reply from 10.0.0.1: bytes=32 time=45ms TTL=64
Reply from 10.0.0.1: bytes=32 time=174ms TTL=64
Ping statistics for 10.0.0.1:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 18ms, Maximum = 174ms, Average = 79msPinged 10.0.0.252 - Work computer connected directly into Cisco modem:
Pinging 10.0.0.252 with 32 bytes of data ;
Reply from 10.0.0.223: Destination host unreachable.
Reply from 10.0.0.223: Destination host unreachable.
Reply from 10.0.0.223: Destination host unreachable.
Request timed out.
Ping statistics for 10.0.0.252:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),So I went back into my Laptop's Window Explorer (connected wirelessly to the Netgear AP), clicked on Networks and viola, I can see my work desktop computer connected directly to the Cisco modem. Weird!
So I went back and repinged both the Cisco modem as well as my desktop computer IP. I got solid pings back!!!! Awesome.
It appears that the network connection might be intermittent in reliability but why. So I went into the Cisco modem admin panel and changed the firewall settings from Typical Security to Minimum Security. Hopefully, this might help with the occasional dropping of connectivity (or viewability) for all of the computers.
As of right now, I have the functionality that I was looking to have with my network setup.
Thanks Searey.
Retired_Member
Jan 13, 2016
LukeDouglas wrote:Searey,
I followed your instructions.
- Reset the
modemTHE ROUTER- Plugged in my laptop directly via cable to Port #1 of the Netgear router
- Went to RouterLogin.net
- Logged in with standard password
Reset passwordSave this for later just adds to the confusionSetup Wireless SSID's (didn't want anyone nearby to log in)- Went to Advanced / Wireless and clicked on the AP checkbox Good!
- I did not set the IP's manually, just let it autoconfigure. Good!
- Applied and it updated @after this YOU DISCONNECT AND CONNECT TO CISCO AND IT GETS NEW IP which IS IN the 10.0.0.x range! it CANNOT BE REACHed @ 192.168.1.1
It returned this error inside the Router setup where the Advanced / Wireless settings were located:The connection has timed outThe server at 192.168.1.1 is taking too long to respond.this is all bs and just adds to the confusionThe site could be temporarily unavailable or too busy. Try again in a few moments.If you are unable to load any pages, check your computer's network connection.If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.
- I disconnected my PC good
- Connected the cable from the Cisco to the WAN port of the Netgear router good
- Waited a few minutes
- Connected my laptop to Port #1 and was able to access the internet
- Went to my desktop computer (which is plugged directly into the Cisco
modem)IT'S NOT A MODEM ANY MORE IT"S A ROUTER and logged into the admin panel for themodemROUTER- Went to Connected Devices and the WNDR4000 already had a Reserved IP
WNDR4000 IPV4 Address
10.0.0.2 MAC Address
2C:B0:5D:2A:EB:AD Comments
Netgear WNDR4000 router in back bedroomReserved IP this is correct! - My laptop was recognized as connected (directly) Connected to what?
Is work PC USING VPN and connected to work? IF SO YOU CANNOT REACH LOCAL RESOURCES when using VPN
- Tried to go to 10.0.0.2 and RouterLogin.net on my work computer (connected to Cisco
modemROUTER) and got a 404 error message. (Not sure if changing to an Access Point disabled the DHCP but that's what it looks like). ALL DHCP is NOW HANDELED IN CISCO ROUTER AP MODE DOES DISABLE DHCP AS IT SHOULD! TRY PINGING 10.0.0.2Check my Network via Windows Explorer on my work computer and could view my Laptop.
- Disconnected my Laptop from the Netgear via cable and connected wirelessly to one of the Netgear wireless SSID's BE SURE YOU"RE NOT USING A GUEST SSID! try pinging it
- Unable to view my Laptop on the Network via Windows Explorer even after a refresh. TRY PINGING IT IF IT PINGS CHECK To be sure that it's HOME NETWORK for that connection
- Disconnected my Laptop from the Netgear wireless SSID and connected to one of the Cisco Wireless SSID's
- Check my Network via Windows Explorer and could view/access my Laptop.
- In addition, I was still unable to view my USB drive connected to the Cisco I don't believe that usb port is designed for sharing but rather for connecting a PC but when I moved it to the Netgear, I was able to view and access it. I can live with this.
So at this point, I still have the 'primary' issue that any computer that is in my homegroup that is connected wirelessly on either of the NetGear SSID's, I cannot see on my desktop work computer connected directly to the Cisco modem. FYI, I did ensure that the NetGear ethernet cable is NOT plugged into the Port #4 on the Cisco modem.
Any other suggestions? use ping utility if it responds then check that those SSID's when connected are characterized AS HOME NETWORK
Luke
LukeDouglas
Jan 13, 2016Aspirant
Reset passwordSave this for later just adds to the confusionSetup Wireless SSID's (didn't want anyone nearby to log in)
I don't either one of these is a big issue and, certainly, should not be an issue with viewing computers. If I didn't setup the Wireless SSID's, then I couldn't connect with my laptop to test the ability to view all computers from my work computer, no matter which SSID they are connected.
Thanks for confirming that the AP mode disables all DHCP functionality.
- My laptop was recognized as connected (directly) Connected to what?
Sorry for the confusion. When I go into my Cisco modem admin panel, it shows as a connected device.
Is work PC USING VPN and connected to work? IF SO YOU CANNOT REACH LOCAL RESOURCES when using VPN
Not connected to a VPN. I have worked for myself for over 45 years. Hate bosses. :)
I did some pinging from my work desktop computer connected to the Cisco modem.
Pinged Netgear Router (AP) 10.0.0.2:
Pinging 10.0.0.2 with 32 bytes of data ;
Reply from 10.0.0.252: Destination host unreachable.
Reply from 10.0.0.252: Destination host unreachable.
Reply from 10.0.0.252: Destination host unreachable.
Reply from 10.0.0.252: Destination host unreachable.
Ping statistics for 10.0.0.2:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Pinged Laptop when connected to one of the Netgear SSID's - IP 10.0.0.223:
Pinging 10.0.0.223 with 32 bytes of data ;
Reply from 10.0.0.223: bytes=32 time=266ms TTL=128
Request timed out.
Reply from 10.0.0.223: bytes=32 time=43ms TTL=128
Reply from 10.0.0.223: bytes=32 time=479ms TTL=128
Ping statistics for 10.0.0.223:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 43ms, Maximum = 479ms, Average = 262ms
So it can't ping the Netgear AP but it can ping the Laptop connected to the Netgear AP. Weird!
I went back into my Windows Explorer on my desktop, clicked on the Network, and I can see the Laptop. I'm not sure why I couldn't see it last night but I can now. However, if I go into my Windows Explorer on my laptop, click on the Network, I cannot see my work desktop computer.
So on my laptop computer connected wirelessly to the Netgear AP SSID, I did some pings.
Pinged 10.0.0.1 - Cisco Modem:
Pinging 10.0.0.1 with 32 bytes of data ;
Reply from 10.0.0.1: bytes=32 time=18ms TTL=64
Request timed out.
Reply from 10.0.0.1: bytes=32 time=45ms TTL=64
Reply from 10.0.0.1: bytes=32 time=174ms TTL=64
Ping statistics for 10.0.0.1:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 18ms, Maximum = 174ms, Average = 79ms
Pinged 10.0.0.252 - Work computer connected directly into Cisco modem:
Pinging 10.0.0.252 with 32 bytes of data ;
Reply from 10.0.0.223: Destination host unreachable.
Reply from 10.0.0.223: Destination host unreachable.
Reply from 10.0.0.223: Destination host unreachable.
Request timed out.
Ping statistics for 10.0.0.252:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
So I went back into my Laptop's Window Explorer (connected wirelessly to the Netgear AP), clicked on Networks and viola, I can see my work desktop computer connected directly to the Cisco modem. Weird!
So I went back and repinged both the Cisco modem as well as my desktop computer IP. I got solid pings back!!!! Awesome.
It appears that the network connection might be intermittent in reliability but why. So I went into the Cisco modem admin panel and changed the firewall settings from Typical Security to Minimum Security. Hopefully, this might help with the occasional dropping of connectivity (or viewability) for all of the computers.
As of right now, I have the functionality that I was looking to have with my network setup.
Thanks Searey.
- Retired_MemberJan 13, 2016
Good News.
The security is ONLY on the WAN side of the cisco, it should have No effect on LAN side
I tested the WNDR4000 for nitgear years ago. AP MODE did not work very well from what I remember it would drop off clients and had to be rebooted often. You might try using this link below to convert them to AP or just replace it all together. I dumped 2 4000's and 2 3700's because they weren't worth the troulble.
http://www.practicallynetworked.com/networking/convert_wifi_router_to_access_point.htm
- LukeDouglasJan 13, 2016Aspirant
Searey,
What brand are you using now for your AP?
- Retired_MemberJan 13, 2016
At the moment I'm using R8000 only because it was supplied for free when I tested for nitgear as was my R7000 which is being used as the router because My comcast DPC3939 is a POS and I cannot reach it 10.0.0.1 when used as router after several hours. Seems to be a known problem and I'm going to exchange it soon.
The r7000 and the r8000 both work great as router or as AP in AP Mode.
My ideal setup would be using comcast gateway/modem/router in router mode and one or both r's in AP Mode. I cannot now because the dpc while working in router does work but, I cannot reach it without a reset and makes logging in to see whats attached a pain in the obama.
Using the dpc in router mode allows me to setup turn off wireless by schedule to prolong the router's radios life. I don't need 5g @1300AC running when I'm sleeping so shut it down and still have DPC provide wifi.