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6 Topics
Nighthawk R6700v2 losing connection to CM700 Modem
Hi there, We are relatively new Comcast Xfinity custmers and decided to buy our own Modem (CM700) and Router (Nighthawk R6700v2). Every morning we find that our computers are disconnected from the internet (DNS Server error), although the Comcast Home Security system is connected through our Modem... and I can access the Internet on my phone when the computers show they are disconnected, however. Each morning, I have manually reset the modem. Today, however, I reset the router instead and the system came back up... which suggests the problem is with the router. I have been told Comcast send updates around midnight every day... and thought this might be causing the modem/routers issues... Can anyone advise on how I would investigate the issue with the router? Thanks in anticipation, AllanSolved9KViews0likes15CommentsNighthawk Router wifi will not connect to internet when cat6 are in the ports
I have comcast internet. Surfboard modem, nighthawk router. When the modem is connected to the router only wifi works corrcetly. If I try to connect and ethernet cord to any of the 4 ports on the back of the router, the wifi stops working. All the wifi devices remain connected (at least the iphones and ipads show they are still connected) but can't access any websites, thus not connected to the internet. Any suggestions on how to remedy this issue?Solved4.9KViews0likes4CommentsSlow WiFi Speed on Nighthawk R8000
Hello, i have Comcast Blast Internet 150MB. My setup is a Netgear N600 Modem/Router with wifi disabled and my Nighthawk R8000 plugged into that. My direct connect wired connection to the N600 gets 180 down, wireless on the Nighthawk is 23-25 down. I have changed channels and used multiple devices (computer, ipad, galaxy, iphone, and xbox) and get the same results. Any suggestions to get the speeds I know this router is capable of?Solved12KViews1like11CommentsNighthawk X4 AC2350
So I am a Comcast customer. I have their wifi modem/router. I also have another wifi router (Linksys). Just like many of you, we have Roku, Hulu, Netflix, etc. We also have Arlo cameras, a Ring door bell, cell phones, a couple of tablets, XBox, etc. We buy the highest speed package from Comcast, as I am also an omline instructor, so good reliable and fast signal is very important to me. I am having a tough time getting service to the back of our modest 1700 sq ft home. I am getting ready to buy the Nighthawk X4 - which may be an overkill, but it seems like a good unit. I am particularly concerned about the Ring doorbell and the Arlo cameras having a solid signal. I have a few questions about this change. 1. Should I deactivate my other two Wi-Fis? 2. If I should keep my other two routers, should I move the Linksis to another room in the house? 3. Am I better off plugin my ethernet to my main desktop to the Nighthawk or to the Comcast unit? 4. Should the desktop be connected wirelesly or through the Ethernet cable? I would appreciate any ideas on how to manage this. I am ordering my X4 today. On Amazon, the X4 is only $10 more than the Nighthawk AC1900, so I figured, why not buy the unit with the better processor, more antennas, etc. Thank you all. AldoSolved5.1KViews0likes4CommentsR7500 slow LAN speeds with Arris 6190 cable internet modem
I activated a new cable internet modem today and my LAN throughput, as measured via speedtest.net, dropped significantly Internet Provider: Comcast, Tier: Performance Pro Setup: Arris SB6190 -- R7500v2 -- wired PC Up until noon today, i was running an older Motorola SB6120 cable internet modem (DOCSIS 3.0 4x4 channels). I bought this right when Comcast upgraded to DOCSIS 3.0 to enjoy the benefits. The 6120 is getting old and I wanted to upgrade to a newer modem and bought the Arris SB6190... trying to future-proof myself, at least for the *near* future in the DOCSIS 3.0 context. Speeds (via speedtest.net): SB6120 (4 down/4 upstream channels): --Router (via the QoS config page/speedtest.net): ~90Mbps down/~6Mbps up --PC: ~80 down/6up SB6190 (16 down/4 up-- 6190 supports 32, but only 16 bonded for my service): --Router: ~90Mbps/6Mbps --PC:~21Mbps/6Mbps Details: --R7500v2 firmware 1.0.3.4 --QoS = Off --Traffic monitoring = Off --Guest Network = Disabled --NIC on the PC is set to auto-negotiate 10/100. It's a integrated NIC on my HP PC, NVIDIA nForce 10/100 I got a case, called support, went through the following: --Changed 2.4 wireless channels to 11, then 9 (I just did what they asked... how this impacts LAN traffic, I don't know) --Changed MTU size to 1432 --Reset to factory settings None of the following resolved the issue; still only getting ~21Mbps at the PC when the Router is used. However, if I bypass the R7500, plugging the PC into the SB6190, then i'm back to ~90/6Mbps down/up speeds. I've seen other similar reports (via some internet searches) but no real solutions. Anyone resolve a similar issue? Thanks!Solved7.2KViews0likes4CommentsNighthawk R7000 + Comcast Bus SMC
Hi all, I have the simple and fairly generic Comcast business SMC cable modem. I can't get an exact model right now but it is the one that has the 4 port switch on the back. In the UI for this modem it presents a LAN address (currently set to 10.2.10.1) and a DHCP server (currently disabled). I bought the R7000 for the VPN. I'd like to connect and have access to devices on the LAN. I have static IPs. The comcast cable modem is at XXX.xxx.xxx.A, and the other one I pay for is XXX.xxx.xxx.B. The comcast SMC modem shows the .A address in the gateway setup. From the internet I can ping that IP and it returns a ping. Prior to the nighthawk I had a sonicwall tz100. In this I simply set it's WAN ip to the .B address sort of in punch through mode and connected the wan port of the sonic wall to the smc 4 port switch and it worked. The problem with the TZ100 was that it caused all kinds of issues with my company Cisco software VPN. I bought the R7000 hoping for a personal VPN solution that would not kill my company Cisco VPN needs. So I installed the nighthawk and gave it IP address 10.2.10.2 on the LAN. I tried a number of different things for the internet setup. Right now I'm using it in punch through mode as well by setting the XXX.xxx.xxx.B address in the WAN port. I point the gateway at the .A address. This sort of works. Computers connected to the nighthawk get DHCP addresses and can get out to the internet. Asking about public IP does in fact return the .B address as I expected. Here is the problem: A) The open VPN client will not connect. It just sits there waiting for host response. I've tried several different computers both Win and Mac with no luck. B) To support A even though I have remote management enabled if I from the internet attempt to connect to XXX.xxx.xxx.B:8443 it too will timeout and not connect. So I suspect something like the following: Even though the router (nighthawk) has wan set to XXX.xxx.xxx.B it really isn't present at that address. IE outgoing works, incoming does not. Somehow the SMC cable modem is like in the way. So I tried the following: SMC cable modem, enable DHCP server from 10.2.10.2 to 10.2.10.4. In nighthawk set WAN port to get address automatically. This did something strange. I want my home LAN to be on 10.2.10.xxx but the nighthawk doesn't like having the IP address of the WAN be similar it seems to the lan. It reverted my lan addresses to 192.168.1.xxx So the simple question after all that is: How should I setup the nighthawk assuming I have two static internet IPs on the SMC. One seems to be used by the SMC and the other is free. How should I setup the nighthawk to ensure it will allow VPN and remote management? Help! Thanks in advance!Solved6.1KViews0likes2Comments