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Ping and internet connectivity issues

This is a discussion on Ping and internet connectivity issues within the Networking Support forums, part of the Tech Support Forum category. My network was fine until I did a couple things: 1) Switched my cable modem for Comcastís modem to save


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Old 06-03-2020, 11:35 AM   #1
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My network was fine until I did a couple things:
1) Switched my cable modem for Comcastís modem to save $25/month

2) Added an 8-port switch connected to a 5 port switch downstairs
Iím not sure on timing, but now I have the following issues that werenít there before:

1) Xbox has a ping time of 200-400 ms, which makes real-time games unplayable. This is tested both within the game and from Xboxís network utility. This is the only device with this kind of ping. Pinging on speedtest.net from xbox gives normal pings of 6-8 ms. Pings to speedtest.net on other devices on the network are also 6-8 ms. HOWEVER Ö I just did a speedtest.net test and ping from my computer is 149 ms. Download of 72 and upload of 7.8

2) From my computer, Iíll periodically lose internet connection. Perhaps once every few minutes to or more. Its difficult to say on how often it happens. I donít use the internet all the time. I do notice it when Iím on a Skype call, or when Iím doing something that requires a live internet connection, like an RDP session. I also notice this on my phone, and on my daughterís laptop when sheís connected either wirelessly or via a wired connection to a MS Teams session with her teacher. Iím not as sure of this symptom on anything but my own computer, though, because Iím not on the other devices as frequently.

When I first got the new cable modem, I used it in router mode. The xbox worked fine for a bit, but gradually the latency built up. I then changed it to bridge mode and put my old router back on the network. The xbox worked fine for a week after this, but gradually, the latency built back up again to where it stands today.

Iíve reset the modem and the router several times, to no avail.

.........................

Is this a wired or wireless connection issue? Both (xbox latency issue happens in both wired and wireless configs. Phone loses internet wirelessly periodically)

How to run and post an ipconfig /all output of the computer(s) in question for review.

Windows IP Configuration

Host Name . . . . . . . . . . . . : Jon-Desktop
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Unknown adapter NordLynx:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NordLynx Tunnel
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Ethernet Connection (2) I219-V
Physical Address. . . . . . . . . : 30-5A-3A-DF-D0-13
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2601:603:f7f:ae4d::17d(Preferred)
Lease Obtained. . . . . . . . . . : Wednesday, June 3, 2020 9:45:27 AM
Lease Expires . . . . . . . . . . : Wednesday, June 3, 2020 1:04:43 PM
IPv6 Address. . . . . . . . . . . : 2601:603:f7f:ae4d:2962:e792:847e:6dfa(Preferred)
IPv6 Address. . . . . . . . . . . : fd48:199b:73b7:1:2962:e792:847e:6dfa(Preferred)
Temporary IPv6 Address. . . . . . : 2601:603:f7f:ae4d:f9cf:f954:d05e:1fd6(Preferred)
Temporary IPv6 Address. . . . . . : fd48:199b:73b7:1:7cf7:c0cf:2524:e167(Preferred)
Link-local IPv6 Address . . . . . : fe80::2962:e792:847e:6dfa%12(Preferred)
Default Gateway . . . . . . . . . : fe80::7a11:dcff:fe04:1718%12
DHCPv6 IAID . . . . . . . . . . . : 355490362
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-2A-0F-4A-30-5A-3A-DF-D0-13
DNS Servers . . . . . . . . . . . : 2601:603:f7f:ae4d::1
fe80::7a11:dcff:fe04:1718%12
NetBIOS over Tcpip. . . . . . . . : Disabled

Ethernet adapter Ethernet 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-NordVPN Windows Adapter V9
Physical Address. . . . . . . . . : 00-FF-77-AB-2B-2D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter vEthernet (NetAdaptHypV):

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter #2
Physical Address. . . . . . . . . : 30-5A-3A-DF-D0-13
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2601:603:f7f:ae4d::17e(Preferred)
Lease Obtained. . . . . . . . . . : Wednesday, June 3, 2020 9:45:27 AM
Lease Expires . . . . . . . . . . : Wednesday, June 3, 2020 12:42:58 PM
IPv6 Address. . . . . . . . . . . : 2601:603:f7f:ae4d:6922:9694:6832:41cc(Preferred)
IPv6 Address. . . . . . . . . . . : fd48:199b:73b7:1:6922:9694:6832:41cc(Preferred)
Temporary IPv6 Address. . . . . . : 2601:603:f7f:ae4d:f48e:374f:366c:76a0(Preferred)
Temporary IPv6 Address. . . . . . : fd48:199b:73b7:1:7514:4370:392e:fa7b(Preferred)
Link-local IPv6 Address . . . . . : fe80::6922:9694:6832:41cc%22(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.31.71(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, June 3, 2020 9:47:34 AM
Lease Expires . . . . . . . . . . : Wednesday, June 3, 2020 9:47:34 PM
Default Gateway . . . . . . . . . : fe80::7a11:dcff:fe04:1718%22
192.168.31.1
DHCP Server . . . . . . . . . . . : 192.168.31.1
DHCPv6 IAID . . . . . . . . . . . : 657480250
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-2A-0F-4A-30-5A-3A-DF-D0-13
DNS Servers . . . . . . . . . . . : 2601:603:f7f:ae4d::1
192.168.31.1
fe80::7a11:dcff:fe04:1718%22
NetBIOS over Tcpip. . . . . . . . : Enabled

Unknown adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9
Physical Address. . . . . . . . . : 00-FF-C7-85-84-50
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Unknown adapter Local Area Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9 #2
Physical Address. . . . . . . . . : 00-FF-13-5F-D7-05
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Unknown adapter Local Area Connection 3:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9 #3
Physical Address. . . . . . . . . : 00-FF-A3-97-B3-C2
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter vEthernet (Default Switch):

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter
Physical Address. . . . . . . . . : 00-15-5D-04-CE-64
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::64c8:fa5:aa38:67e0%33(Preferred)
IPv4 Address. . . . . . . . . . . : 172.17.236.209(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.240
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 553653597
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1E-2A-0F-4A-30-5A-3A-DF-D0-13
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Who is your Internet Service Provider (ISP)?
Comcast in Seattle

What type of Broadband connection are you using?
Cable

What is the exact Make and Model of your Modem, Router or Modem/Router Combo Ė
Modem: tg02dcw3482p2ct Is connected to:
Router: Xiaomi Router 3 Pro (R3P) is connected to:
Ricoh printer and
TP Link switch, 8 port. TL-SG108, is connected to:
My computer, xbox, desk phone, Synology drive and:
Netgear 5 port switch ($20 thing, donít have the model number), is connected to:
Computer downstairs
Was also connected to a wireless hot spot, but thatís been disconnected for a while

What version of windows/OSX are you running - if Apple OSX follow guidelines here
Windows 10: 10.0.18363

What is the Name of the Anti-Virus, Security or Firewall Software installed from the problematic computer or if you have ever had a trial version on the PC - McAfee, Norton, Eset, Webroot, Zone Alarm, etc.
I use windows defender, but also have McAfee web something or rather. Plus Malware bytes. Iíve probably had a trial version of other stuff.
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Old 06-03-2020, 08:29 PM   #2
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I spent a few hours troubleshooting this today by doing the following:

Moving my router and modem to where the cable directly comes into the house, elmininating two other cables. (I tried connecting directly to the modem and the problem seemed to not go away.)

I then disconnected a number of other devices on the network and narrowed it down to my synology device. When I plug in the synology NAS, the network gets bad. When I unplug it, everything is fine.

I'm now uninstalling services on the NAS down to the bare bones. I'd installed some networking things on it, not really thinking much about it. So, one of those is probably causing the problem.
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Old 06-04-2020, 05:27 AM   #3
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Im glad that you are getting it narrowed down.

Keep us updated of the outcome please.
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Old 06-05-2020, 10:05 AM   #4
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Thank you. Well, this isn't ideal, but I've decided to get rid of the Synology device. I've already spent too much much time fussing with it, and this will fix the issue. I'm going to install the drives from the thing into my computer.

I removed all apps except for the ones Synology won't let me delete, and the problem still occurs. Its pretty dramatic, too. My internet speed on speedtest.net will drop from 200 to 20-50 with the synology drive plugged in.

I'm suspicious that a virus or something embedded itself into the thing? That or a physical problem with the NIC on the device. Not sure. Anyway, its now sitting quietly on my table, drives removed...

Thanks for listening!
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