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ThaDuckmasta's profile

Contributor

 • 

2 Messages

Thu, Feb 7, 2019 3:41 AM

"Invalid IP Packet" displayed in logs constantly and passthrough router has problems

For several weeks, my home router (Netgear R7000) has been crashing multiple times a day.  It starts dropping connections to devices and becomes completely unresponsive.  I have to power cycle it to get it working again for several more hours before the next crash.  Finally, Netgear released a firmware update, which I installed.  The all-out crashes stopped, but now the router's connection to the internet through the AT&T Arris BGW210-700 will "hiccup" a few times a day--by this I mean that the connection will drop for about 10 seconds.  If you are streaming something or otherwise doing something that requires a consistent connection, it will drop and then restore after 10-30 seconds, but I don't have to power cycle it anymore.  

 

I was convinced the issue was my router, but I now think it may be a setting on the AT&T modem.  The logs in my router, which I previously could not get to when it locked up because they got cleared out, show "Internet disconnected" and then "Internet connected" about 1 second apart, which is when those network hiccups occur.  Viewing the Arris modem logs, every day there are hundreds of entries showing "Invalid IP Packet" entries that show my network as the source and any series of destinations that don't seem to have a pattern.

 

The modem is set to "IP Passthrough" but I could not figure out how to set up the "Cascaded Router" setting so that the modem is better configured for having a second router attached.  But I also had not changed any settings on the modem for nearly a year before I started having the daily router crashes.  I tried disabling the modem firewall settings, but it made no difference.  Many of the "Invalid IP Packet" entries initially were showing IPv6 addresses, so I tried disabling IPv6 on the modem, in case there was some conflict, but it did not help.

 

I think it is likely that some firewall setting or some setting that conflicts with my Netgear router is causing this, but I cannot pinpoint it, especially since, as I mentioned, I did not change anything on the modem when the issue cropped up.  Have you experienced this issue?  Do you have any recommendations for better configuring the modem to simply be a passthrough to my Netgear router?

Responses

d3monkid12

Mentor

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78 Messages

2 y ago

And those speeds get lower Screenshot_20190422-124504_Chrome.jpg

 

Tutor

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2 Messages

2 y ago

I have this problem too.  Just decided to cancel services than deal with the ineptitude of customer service. Most recent time they claimed there was nothing wrong despite having 3k+ ping lag.

anatolyk

Teacher

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17 Messages

2 y ago

@DavidCS- I am with you on firewall having to do lots of things, but my inquiry is why firewall is blocking *anything* if it is explicitly disabled. Please Take a look at the log lines below. The 10.XX.XX.33 and 10.XX.XX.34 are our internal PBX IP addresses. Whenever firewall decides to start dropping these packets (roughly once a week), our phones go down, unable to connect to SIP provider. 

 

Sad thing is that customer is left to deal with this on their own and ATT wouldn't even try to take the report and see if there is an issue in the modem firmware. This is on top of lack of staging or customer control in when ATT may push new firmware, which may bring new bugs. Oh, did I mention that paid support is a joke and there is no way to connect to actual engineer who understands a little more than how to power cycle all devices.

 

Apparently @daesania has alternative service to go to and I am gelous because we do not. If there was a competitor, that modem would have gone to trash (back to ATT) a long time ago. Instead, we are writing monitors to detect packet loss and power cycle the modem. Saaaad 😞

 

 

1 2019-08-12T06:39:28.304289 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
2 2019-08-12T06:39:30.824296 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
3 2019-08-12T06:39:32.304287 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
4 2019-08-12T06:39:33.824283 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
5 2019-08-12T06:39:35.996267 10.XX.XX.34 198.XX.XX.60 UDP IP Source Address
6 2019-08-12T06:39:37.280287 10.XX.XX.34 192.XX.XX.3.3 UDP IP Source Address
7 2019-08-12T06:39:38.996271 10.XX.XX.34 198.XX.XX.60 UDP IP Source Address
8 2019-08-12T06:39:40.280291 10.XX.XX.34 192.XX.XX.3.3 UDP IP Source Address
9 2019-08-12T06:39:41.996280 10.XX.XX.34 198.XX.XX.60 UDP IP Source Address
10 2019-08-12T06:39:44.304288 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
11 2019-08-12T06:39:45.830300 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
12 2019-08-12T06:39:47.830282 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
13 2019-08-12T06:39:50.280288 10.XX.XX.34 192.XX.XX.3.3 UDP IP Source Address
14 2019-08-12T06:39:52.280286 10.XX.XX.34 192.XX.XX.3.3 UDP IP Source Address
15 2019-08-12T06:39:53.304280 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
16 2019-08-12T06:39:55.196278 10.XX.XX.34 198.XX.XX.60 UDP IP Source Address
17 2019-08-12T06:39:56.304279 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
18 2019-08-12T06:39:58.196282 10.XX.XX.34 198.XX.XX.60 UDP IP Source Address
19 2019-08-12T06:39:59.832313 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
20 2019-08-12T06:40:01.832287 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
21 2019-08-12T06:40:04.304285 10.XX.XX.33 192.XX.XX.3.3 UDP IP Source Address
22 2019-08-12T06:40:05.328283 10.XX.XX.34 192.XX.XX.3.3 UDP IP Source Address
23 2019-08-12T06:40:07.328276 10.XX.XX.34 192.XX.XX.3.3 UDP IP Source Address

Tutor

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2 Messages

2 y ago

thankfully we're moving.  we do have an option, that being Cox, but their service was a whole 5mbps download and they couldn't figure out why in 5 years time.  Mine happens about 5-6 times a day.  Its incredibly annoying.

Contributor

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3 Messages

2 y ago

Well this is sad and frustrating. I was SO excited to find this thread only to learn there’s been no resolution since the OP in February. And it doesn’t seem like AT&T cares to resolve. Ugh! May I ask what area you all are in to see if it’s a territorial issue. I’m on the East coast of Central FL. 

d3monkid12

Mentor

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78 Messages

2 y ago

I'm in central Texas. it is very frustrating. whether the invalid ip packets are the problem (or a result of the problem) or not. there is obviously an issue that needs to be fixed

Tutor

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3 Messages

2 y ago

I am having this same issue with no help from at&t at all!!! I have had 13 techs to my home since may( 3 tech appts were no call no shows) I have a brand new router with 200/300 disconnects in a DAY! 

 

I HAVE OVER 300 entries on my routers log that state "generic discards" "flood limit" "invalid ip packet" and a few more. While looking up the IP addresses that show on my log they come from many IP hosting sites. A lot of sites are from Asia, europe, china etc. 

 

AT&T is the most unprofessional and difficult company I have ever had to work with 

DavidCS

Community Support

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1.7K Messages

2 y ago

Hi @anatolyk ,

 

With the IP phones, are they connected directly into the gateway or going through a 3rd party router? I know our routers were not designed to handle class A private IPs, so I am wondering if that is the issue.

 

David, AT&T Community Specialist

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

Still need help? Ask a question! Our 1.4 million members typically respond within 1 hour.

gr8sho

ACE - Professor

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2.6K Messages

2 y ago

Hello @DavidCS 

I’ve been watching this issue as well.  One of the ADSL2+ customers here had posted to me privately broadband page stats that showed a high number of errors.  The suggestion was and still is to ensure proper line quality is in place, but that confirmation is still not forthcoming.  Can something be done to put this question to bed?

@d3monkid12 , please add the tables to this thread. 

Award for Community Excellence 2020 Achiever*
*I am not an AT&T employee, and the views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
DavidCS

Community Support

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1.7K Messages

2 y ago

Hi @gr8sho ,

 

There's no one size fits all solution for the invalid IP packets. I wish it was that easy. Usually, the best way around it is to ensure proper line quality, and even if there are issues with the packets, they will get corrected, so you will not see any degradation of your service. The most common causes we see are DDOS attacks, a virus or malicious spyware on a device, or even line issues where the packets are getting corrupted on the transfer. Sadly, the router logs usually don't help as much. It does show the IP traffic to see if there's activity that shouldn't be there, but the best bet would be to get a packet tracer program to look at the traffic coming in and out and really look at what is happening.

 

David, AT&T Community Specialist

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

Still need help? Ask a question! Our 1.4 million members typically respond within 1 hour.

gr8sho

ACE - Professor

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2.6K Messages

2 y ago

@DavidCS , thank you.

Wasn't looking for anything other than ensuring proper line quality is in place.  Getting this established brings one most of the way there to a good internet experience.

@d3monkid12 , gentle reminder to post your broadband tab tables here, please.

Award for Community Excellence 2020 Achiever*
*I am not an AT&T employee, and the views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
DavidCS

Community Support

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1.7K Messages

2 y ago

@gr8sho 

 

Gotcha! Totally misread your comment. As always thanks for you input on this.

 

David, AT&T Community Specialist

If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
*I am an AT&T employee, and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.

Still need help? Ask a question! Our 1.4 million members typically respond within 1 hour.

d3monkid12

Mentor

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78 Messages

2 y ago

Which tables? Under the broadband tab in my gateway it has status and configure tabs. Under the diagnostic tab it has NAT table, sys log, & logs. I'm not sure which one you want to see

d3monkid12

Mentor

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78 Messages

2 y ago

I just came across something on the att website, i don't know if this has anything to do with the issues but to me it seems like it could be part of the problem. On the website i was reading something about the bgw210 gateway and it said something about the bgw210 being for gigabit internet on fiber optic lines. Well i have at&t 12 (for a whole 12mbps when I'm lucky) on adsl2+. Could this be an issue? 

gr8sho

ACE - Professor

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2.6K Messages

2 y ago

Nope.  All of their gateways to date support DSL and all it's varieties. 

 


@d3monkid12 wrote:

I just came across something on the att website, i don't know if this has anything to do with the issues but to me it seems like it could be part of the problem. On the website i was reading something about the bgw210 gateway and it said something about the bgw210 being for gigabit internet on fiber optic lines. Well i have at&t 12 (for a whole 12mbps when I'm lucky) on adsl2+. Could this be an issue? 


 

Award for Community Excellence 2020 Achiever*
*I am not an AT&T employee, and the views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.

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