Intermittent Internet Connection - ping 192.168.1.1 destination not reachable

Ramtrap

Honorable
Feb 28, 2013
18
0
10,510
Hi all,

I've been searching the forums trying to find something that fits my case, and the closest I came was here: http://www.tomshardware.com/answers/id-2956565/intermittent-connection-sec-minutes.html

Mine doesn't seem to be *that* bad where it's timing out consistently like that person's, however, it does do that on occasion.

I have my Fios Quantum connection going from the Verizon-supplied/purchased modem to a Nighthawk R7000 router, if that's of any concern. The issue I'm having, however, is with my ethernet/wired connection. The hub is upstairs in the attic. So wires are going from modem, up to switch in attic, down to office, into another switch, which then feeds multiple computers.

I get connection fine, for the most part, but within the last couple weeks, it will time out for no reason whatsoever and has really inhibited my work. I've called Fios and done line tests, re-set the modem (and the router, but again, not on wifi, so it shouldn't be the problem). According to an answer from the poster, listed above, line checks are basically a sham and he was recommended to have them come out to his home.

I wanted to ask the community their opinion first, before I resort to that. I did a ping -t google.com and it worked perfect for about 45 seconds before I started getting a "destination not reachable" response, and then a "Request timed out" and then it resumed giving me good pings again.

*I thought it might be the ethernet port, so I changed that out, too, by the way. Wifi signal is perfect and there's nothing wrong with that--it's just the wired connection. Nothing has changed at all, insofar as configuration of the network, no wires have been touched, cables have been checked and are functioning properly with a tester. Just confused as to what's going on with these random timeouts.

Any help would be appreciated. Can post readouts from ipconfig or whatever is necessary as well. Thanks, all!
 

avatar_of_tenebrae

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Oct 25, 2017
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what OS? if your have multiple "computer" i assume it's not the PC hardware - but perhaps the OS. all those routers are configurable by web address. did you ever log in and check settings on those many "routers" ? connecting many PC through routers to a verison "long haul" router ... not gauranteed to be work out of the box.

you'll have to be more specific about your problem. the loss of ping after 45 sec to google is not enough...

what OS?

could you still ping your verizon modem? (do you even know what address it's using and whether it's changing (re-assigning) the address your PCs use dynamically? (ie, is dhcp in use? do all your OSes automatically "follow"? is your router set for WHAT KIND of IP sharing or does verizon deal you out as many IP as you wish?))

be allot more specific about your network. which are wireless, which are switches (or router), which are web page configurable, which are using cat5 or cat6: the whole diagram
 
When you are doing ethernet, you should disable WIFI (on the testing machine).

Networking is actually very simple to troubleshoot but you have to be methodical. Basically you have problem going from A to Z. So ask can I go A to B? how about A to C? until you find the "break." Use PING liberally.

If u have no problem doing WIFI, then your ISP is fine, 'cuz WIFI too eventually hits the same ISP modem.
 

Ramtrap

Honorable
Feb 28, 2013
18
0
10,510


To start, it's Windows 10. Everything's updated and works fine wirelessly.

I don't believe the router is the issue because the connection is ethernet and coming directly from the ethernet port, which is connected via a switch. So as far as the layout we have something like this:
- Fios Box (outside) to Fios Quantum Modem
- Fios Quantum Modem to ethernet switch in the attic (this feeds the many ethernet ports within the house)
- Ethernet switch in attic to my office
- Ethernet port in office wall to a switch in the office (used to give ethernet access to a PC, laptop, and PS4; I don't believe I've had any issues with the PS4 or the laptop, at least nothing noticeable, as those are not used near as often as my PC

Logging into the modem right now, I'm confused at my connections. My Home Network has an IP address of 192.168.1.1 (which is expected). The "Broadband Connection (Ethernet/Coax)" is showing a 71.114.x.x prefix--is that normal? I'm not sure the difference between Broadband and Network connections. I pinged both the Network and Broadband IP addresses. The Home Network address was fine; <1ms response times and no fails. Pinging to the 71.114.x.x IP address, I had 9 straight returns after about 30 seconds where I went from "Reply from 71.114.x.x" to "Reply from 192.168.1.1: Destination not reachable." Default gateway is 71.114.95.1 which appears to be in Virginia, where I am located. Both of them, by the way, have subnet masks of 255.255.255.0.

They are setting IP addresses Dynamically, as far as I can tell (Internet Protocol Version 4 (TCP/IPv4 Properties shows the "Obtain an IP address automatically" and "Obtain DNS server address automatically" toggles ticked). I believe this is the default, so yea, all my computers/equipment will have these settings.

Not sure I'm understanding what you mean by "web page configurable" unless you're asking if I can manage my network online by accessing the router, or more specifically, the Fios modem--yes, I can. That's where I'm getting a lot of the info from.

House is wired for cat5 (maybe cat5e?), but definitely not 6, though. I still get netspeeds of 90+ dl/ul, so I'm not necessarily concerned in not getting that 1000 Mbps right now as I am just getting the intermittent connection to stabilize. Everything has been fine the last 3 years. Nothing changed. Then out of the blue, all this happens. At a loss.

Please let me know if there's anything else you need from me, and thank you SO MUCH for your time and response!!!
 

Ramtrap

Honorable
Feb 28, 2013
18
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10,510


lol, the one answer I was hoping to avoid. It'll be ugly, but I'll have to get a 25/50 foot cable and run it from where the modem is up to where my modem is. You're right though, that's the best answer to determine right away if it's the modem or not. But I just don't understand why everything would just go to crap overnight with nothing changes--no firmware updates, no wiring changes, no unplugs--nothing. Very strange. Will try that tomorrow if I can find my longer ethernet cables and see what happens, thank you!
 

Ramtrap

Honorable
Feb 28, 2013
18
0
10,510


I don't have a wifi adapter on this machine, so there are no worries with any cross signals on this machine. As far as using ping liberally, I'm not sure where to go beyond pinging the modem (because the router should be completely out of the picture--the router is essentially just being used to serve better wifi signal because of the house layout).