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#11
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No Broadband, but Wifi Still Works
VanguardLH wrote:
John McGaw wrote: On 12/23/2018 11:05 PM, M.L. wrote: The broadband light on the Arris NVG510 is blinking red on an Ethernet-connected Win10 desktop computer. Restarting the router didn't help, and it continues blinking red even when the Ethernet cable is disconnected. However, all smartphones on the network have WiFi working and connected to the expected SSID. Why doesn't the broadband issue affect the wireless connections? You seem to be certain that the red light means that communication are absolutely and totally lost but what happens is it merely means that the connection is intermittent or sub-optimal? What if the "red light flashy circuit" is reacting badly? Manuals don't always say what they mean -- sometimes the manual writer really has no clue of what is actually going on beyond some vague notions and notes from the designers (and designers don't always pay much attention to correcting the drafts of the manuals even if they are actually included in the loop). If you are sure that you have connection and can perform tests to prove it then you _have_ connection no matter what the light is telling you. Think of it as a defective "check engine" light -- put some black tape over it. When the communications are truly lost then you will have _no_ question about it and you can gaze at the LED then. That said, I'd certainly be badgering my ISP for an immediate (free) replacement of the old one and the flashing LED is as good an excuse as any. I had originally understood the OP as saying there was Internet connectivity via wi-fi to the modem but not when using Ethernet (wired) to the modem. However, all the OP actually said is there is Internet connectivity via wi-fi but never mentioned if there is Internet connectivity via wired. Regardless of the LEDs on the modem: - OP said wi-fi gets to Internet okay. - No mention of whether or not wired Ethernet gets to the Internet. - Flashing red LED doesn't match wi-fi connectivity to Internet. From reading articles about that modem, it has a history of poor reliability. Some users noted the modem would lose the Internet connection and have to renegotiate several times per day. With DSL, as I recall, there is a keep-alive ping that can be adjusted. If a reset (not a reboot) doesn't work and if the modem is leased, exchange it. On my equipment here, I've actually had a flashing LED on the panel of the hardware, due to "torrent-like connection exhaustion" on the router section. In one case, it appeared the box had crashed, and I couldn't "web" into it and check anything. In another case, the red LED was flashing and just the ability to make new connections was lost. I could select "reboot" from the web interface, without getting out of my chair and toggling the power on the network stack power strip. And that was at very low connection levels (caused by the greedy behavior of Windows Update in Windows 10). Having 20 connections open, and closing some and opening others, seemed to tip it over. AFAIK, to be a "good corporate citizen", the router table should have room for at least a thousand entries (which age out at some point, when not used). By no stretch of the imagination, would my hardware ever tolerate Torrent usage. It would likely tip over in about 5 seconds or so. That's how bad it is :-/ I'd spend more money on spiffy network hardware, but there's little visible benefit (except a lack of flashing red lights maybe). As it is, to keep my VOIP phone running wastes 17W of electricity total, and that really ****es me off. Adding yet another 10W box-o-tricks to the stack isn't going to improve that. You know, one of those boxes with the "microwave array" on top :-) https://images-na.ssl-images-amazon....Y300_QL70_.jpg You put your bag of microwave popcorn in the center. https://assets.hardwarezone.com/img/...-rt-ac5300.png Paul |
#12
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No Broadband, but Wifi Still Works
On 12/24/2018 2:20 AM, M.L. wrote:
Wi-fi "working" could mean lots of different things. For example, maybe the phones can connect via wi-fi to the modem but the users haven't yet tested that they can actually get an Internet connection (by using a web browser). One user absent-mindedly logged into her office remotely and was connected. That's how they found out they had wireless Internet. That's her work phone and it doesn't have cellular service. Unless they also disable their cellular data connection, they won't know if the Internet traffic they generate is over the wi-fi connection to the modem or through a cellular data connection. One of my troubleshooting tips was to confirm the expected SSID of the wireless connection. I helped a neighbor diagnose poor download speeds once. His router came pre-configured incl. wifi network SSID, username and password, just like his neighbor's router, in fact identical to his neighbor's router. they both came from the same local ISP. When I saw the duplicate we renamed his network and connected to it, problem solved. |
#13
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No Broadband, but Wifi Still Works
On 12/24/2018 2:31 PM, John McGaw wrote:
On 12/23/2018 11:05 PM, M.L. wrote: The broadband light on the Arris NVG510 is blinking red on an Ethernet-connected Win10 desktop computer. Restarting the router didn't help, and it continues blinking red even when the Ethernet cable is disconnected. However, all smartphones on the network have WiFi working and connected to the expected SSID. Why doesn't the broadband issue affect the wireless connections? You seem to be certain that the red light means that communication are absolutely and totally lost but what happens is it merely means that the connection is intermittent or sub-optimal? What if the "red light flashy circuit" is reacting badly? Manuals don't always say what they mean -- sometimes the manual writer really has no clue of what is actually going on beyond some vague notions and notes from the designers (and designers don't always pay much attention to correcting the drafts of the manuals even if they are actually included in the loop). If you are sure that you have connection and can perform tests to prove it then you _have_ connection no matter what the light is telling you. Think of it as a defective "check engine" light -- put some black tape over it. When the communications are truly lost then you will have _no_ question about it and you can gaze at the LED then. That said, I'd certainly be badgering my ISP for an immediate (free) replacement of the old one and the flashing LED is as good an excuse as any. Agreed, it looks like the h/w is failing. |
#14
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No Broadband, but Wifi Still Works
On 12/24/2018 5:57 PM, Paul wrote:
VanguardLH wrote: John McGaw wrote: On 12/23/2018 11:05 PM, M.L. wrote: The broadband light on the Arris NVG510 is blinking red on an Ethernet-connected Win10 desktop computer. Restarting the router didn't help, and it continues blinking red even when the Ethernet cable is disconnected. However, all smartphones on the network have WiFi working and connected to the expected SSID. Why doesn't the broadband issue affect the wireless connections? You seem to be certain that the red light means that communication are absolutely and totally lost but what happens is it merely means that the connection is intermittent or sub-optimal? What if the "red light flashy circuit" is reacting badly? Manuals don't always say what they mean -- sometimes the manual writer really has no clue of what is actually going on beyond some vague notions and notes from the designers (and designers don't always pay much attention to correcting the drafts of the manuals even if they are actually included in the loop). If you are sure that you have connection and can perform tests to prove it then you _have_ connection no matter what the light is telling you. Think of it as a defective "check engine" light -- put some black tape over it. When the communications are truly lost then you will have _no_ question about it and you can gaze at the LED then. That said, I'd certainly be badgering my ISP for an immediate (free) replacement of the old one and the flashing LED is as good an excuse as any. I had originally understood the OP as saying there was Internet connectivity via wi-fi to the modem but not when using Ethernet (wired) to the modem.Â* However, all the OP actually said is there is Internet connectivity via wi-fi but never mentioned if there is Internet connectivity via wired. Regardless of the LEDs on the modem: - OP said wi-fi gets to Internet okay. - No mention of whether or not wired Ethernet gets to the Internet. - Flashing red LED doesn't match wi-fi connectivity to Internet. From reading articles about that modem, it has a history of poor reliability.Â* Some users noted the modem would lose the Internet connection and have to renegotiate several times per day.Â* With DSL, as I recall, there is a keep-alive ping that can be adjusted.Â* If a reset (not a reboot) doesn't work and if the modem is leased, exchange it. On my equipment here, I've actually had a flashing LED on the panel of the hardware, due to "torrent-like connection exhaustion" on the router section. In one case, it appeared the box had crashed, and I couldn't "web" into it and check anything. In another case, the red LED was flashing and just the ability to make new connections was lost. I could select "reboot" from the web interface, without getting out of my chair and toggling the power on the network stack power strip. And that was at very low connection levels (caused by the greedy behavior of Windows Update in Windows 10). Having 20 connections open, and closing some and opening others, seemed to tip it over. AFAIK, to be a "good corporate citizen", the router table should have room for at least a thousand entries (which age out at some point, when not used). By no stretch of the imagination, would my hardware ever tolerate Torrent usage. It would likely tip over in about 5 seconds or so. That's how bad it is :-/ I'd spend more money on spiffy network hardware, but there's little visible benefit (except a lack of flashing red lights maybe). As it is, to keep my VOIP phone running wastes 17W of electricity total, and that really ****es me off. Adding yet another 10W box-o-tricks to the stack isn't going to improve that. You know, one of those boxes with the "microwave array" on top :-) https://images-na.ssl-images-amazon....Y300_QL70_.jpg You put your bag of microwave popcorn in the center. https://assets.hardwarezone.com/img/...-rt-ac5300.png Â*Â* Paul box-o-tricks, lol. |
#15
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No Broadband, but Wifi Still Works
Mike S wrote:
On 12/24/2018 2:31 PM, John McGaw wrote: On 12/23/2018 11:05 PM, M.L. wrote: The broadband light on the Arris NVG510 is blinking red on an Ethernet-connected Win10 desktop computer. Restarting the router didn't help, and it continues blinking red even when the Ethernet cable is disconnected. However, all smartphones on the network have WiFi working and connected to the expected SSID. Why doesn't the broadband issue affect the wireless connections? You seem to be certain that the red light means that communication are absolutely and totally lost but what happens is it merely means that the connection is intermittent or sub-optimal? What if the "red light flashy circuit" is reacting badly? Manuals don't always say what they mean -- sometimes the manual writer really has no clue of what is actually going on beyond some vague notions and notes from the designers (and designers don't always pay much attention to correcting the drafts of the manuals even if they are actually included in the loop). If you are sure that you have connection and can perform tests to prove it then you _have_ connection no matter what the light is telling you. Think of it as a defective "check engine" light -- put some black tape over it. When the communications are truly lost then you will have _no_ question about it and you can gaze at the LED then. That said, I'd certainly be badgering my ISP for an immediate (free) replacement of the old one and the flashing LED is as good an excuse as any. Agreed, it looks like the h/w is failing. The reviews for the product are Not Good. It could easily be the Firmware Elves at fault. Paul |
#16
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No Broadband, but Wifi Still Works
Wi-fi "working" could mean lots of different things. For example, maybe the phones can connect via wi-fi to the modem but the users haven't yet tested that they can actually get an Internet connection (by using a web browser). One user absent-mindedly logged into her office remotely and was connected. That's how they found out they had wireless Internet. That's her work phone and it doesn't have cellular service. VOIP service is separate from Internet service. That's why when you call to report an outage they ask if the other service still works (to know the physical connections and cabling are still okay). Unclear if the work phone is a landline phone or a cell phone but with no cellular service (no voice or data service plan). It's the latter. One of my troubleshooting tips was to confirm the expected SSID of the wireless connection. While you could dig into the modem's configuration to see, for example, if the wifi connection was subnetted away from the Internet access (it's very possible to use subnets within the intranet that grant no WAN-side access, and the same for the Ethernet wired ports), it would probably be much easier to reset the modem to its defaults. Thanks VanguardLH. As always, your reply is thorough and well-researched. However, at this point we're not trying to fix anything. Just waiting on AT&T. I'm just baffled as to how all the smartphones have WiFi even though the router's Broadband light is flashing red. The Ethernet-connected desktop is the only one without Internet. |
#17
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No Broadband, but Wifi Still Works
You seem to be certain that the red light means that communication are absolutely and totally lost but what happens is it merely means that the connection is intermittent or sub-optimal? What if the "red light flashy circuit" is reacting badly? That said, I'd certainly be badgering my ISP for an immediate (free) replacement of the old one and the flashing LED is as good an excuse as any. The Arris NVG510 is paid for. I had originally understood the OP as saying there was Internet connectivity via wi-fi to the modem but not when using Ethernet (wired) to the modem. However, all the OP actually said is there is Internet connectivity via wi-fi but never mentioned if there is Internet connectivity via wired. There is no wired connectivity. WiFi only. Regardless of the LEDs on the modem: - OP said wi-fi gets to Internet okay. - No mention of whether or not wired Ethernet gets to the Internet. - Flashing red LED doesn't match wi-fi connectivity to Internet. From reading articles about that modem, it has a history of poor reliability. Some users noted the modem would lose the Internet connection and have to renegotiate several times per day. With DSL, as I recall, there is a keep-alive ping that can be adjusted. If a reset (not a reboot) doesn't work and if the modem is leased, exchange it. |
#18
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No Broadband, but Wifi Still Works
M.L. wrote:
Wi-fi "working" could mean lots of different things. For example, maybe the phones can connect via wi-fi to the modem but the users haven't yet tested that they can actually get an Internet connection (by using a web browser). One user absent-mindedly logged into her office remotely and was connected. That's how they found out they had wireless Internet. That's her work phone and it doesn't have cellular service. VOIP service is separate from Internet service. That's why when you call to report an outage they ask if the other service still works (to know the physical connections and cabling are still okay). Unclear if the work phone is a landline phone or a cell phone but with no cellular service (no voice or data service plan). It's the latter. One of my troubleshooting tips was to confirm the expected SSID of the wireless connection. While you could dig into the modem's configuration to see, for example, if the wifi connection was subnetted away from the Internet access (it's very possible to use subnets within the intranet that grant no WAN-side access, and the same for the Ethernet wired ports), it would probably be much easier to reset the modem to its defaults. Thanks VanguardLH. As always, your reply is thorough and well-researched. However, at this point we're not trying to fix anything. Just waiting on AT&T. I'm just baffled as to how all the smartphones have WiFi even though the router's Broadband light is flashing red. The Ethernet-connected desktop is the only one without Internet. https://www.broadcom.com/products/br...d/xdsl/bcm6362 Single-Chip IAD with Integrated ADSL2+, 802.11n and DECT ADSL2+ transceiver and AFE with a high-performance multicore MIPS32 CPU, ATM/PTM hardware SAR, hardware packet-processing accelerator Gigabit Ethernet switch core with four 10/100 Ethernet PHYs and dual GMII interfaces, dual USB Host/Device, multichannel TDM/PCM bus, parallel expansion bus supporting CardBus, and mini-PCI into a single high-performance monolithic device 2x2 802.11n core, which offers best-in-class range and throughput to support the video, voice and data services that broadband providers are offering to subscribers WLAN subsystem includes Accelerange technology 2x2 802.11n radio supports both 2.4 GHz and 5 GHz operation High performance 400 MHz dual core processor architecture, hardware-assisted wirespeed bridging and routing, hardware assisted IPsec security for virtual private network (VPN) termination, gigabit switching, and support for USB 2.0 host and devices CAT-iq DECT core for HD voice, multi-line cordless VoIP and internet connectivity https://wikidevi.com/wiki/Motorola_N...nabling_Telnet Serial output from boot sequence Light starts blinking red when DoDyingGaspCommand is printed ******* Maybe the secret is "hardware-assisted wirespeed bridging and routing". It could be that the MIPS handles setting up new connections in a table somewhere, but once set up, packets follow the same path autonomously. Seems pretty far fetched though - modern Wifi MACs use a processor and have their own code. There is no indication this product does that - engineers don't generally waste resources, and if you wanted a processor for keep-alive on the wifi, the main processor could run that code quite nicely. Another possibility is a division of labor. There are two cores. Perhaps one core can execute a Halt, and the second core keeps running, and the division of labor is such that lashed up connections continue to deliver data. Maybe one core is considered "RT" for the DSP, while the other core runs Linux. Something has to do DSP for the ADSL. That would use up any where from half a core to one core of horsepower. And that would run continuously. I don't see the word DSP in the description (like a dedicated DSP for just the front end). The serial port log output says "Allocating memory for DSP module core and initialization code" which suggests the MIPS32 does the necessary DSP on the digitized signal from the analog front end. You could have service, if there was some way for a second WAN path on the router. I don't know how you'd figure that out though. What could your Wifi connect to, that would relay packets ? ******* The four pin serial header would be chassis ground referenced. The box would normally be "fully floating" except for whatever earthing was via the ADSL RJ11. If there was a need to run the serial header while the ADSL was hooked up, if I was doing it I would look for an optoisolated TX/RX from there to a USB dongle on my computer. That would be necessary to help preserve the noise floor on the ADSL2+ connection. The log on that web page was collected with the ADSL2+ line unplugged (and just as a means to collect hardware detection info from inside the box). Paul |
#19
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No Broadband, but Wifi Still Works
M.L. wrote:
The Arris NVG510 is paid for. If their customer buys their own modem instead of leasing it from the ISP then the ISP won't support that modem. Well, they might but they will likely charge for fixing something that isn't their property. The customer should start hunting around for a new modem after checking with their ISP which are their recommended brands and models. |
#20
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No Broadband, but Wifi Still Works
The Arris NVG510 is paid for. If their customer buys their own modem instead of leasing it from the ISP then the ISP won't support that modem. Well, they might but they will likely charge for fixing something that isn't their property. The customer should start hunting around for a new modem after checking with their ISP which are their recommended brands and models. I just got back from Christmas dinner at the folks I was helping. User said he fiddled with the router and PC until somehow the PC started receiving Internet. Unfortunately he isn't computer savvy and has no idea exactly what he did to fix the issue. The broadband light is a solid green now. I checked his Android and it was still receiving WiFi, and his cellular data was enabled. Thanks to all who replied, sorry for the anti-climatic closure. |
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