No Internet
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Hello,
I have anSG-1100. It has been working perfectly fine for the last year or so. Then I moved my office. My ISP remained the same but I had to change from fiber to co-ax. No big deal but now I have no internet access. I was able to ping external routers but tracert went a max of 4 hops and then failed. Of course my ISP is blaming the firewall but I haven’t changed any settings from when it was running in my old office so I can’t see it being he router. I did connect a computer directly to the modem through a switch and the behavior remained exactly the same. The last tech “reprovisioned” the modem and now I can’t even ping the firewall’s default gateway.
My question is: what have I missed? Is there a setting in the 1100 I should be changing?
Very frustrated:-(
Bert
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@bert-0 said in No Internet:
I did connect a computer directly to the modem through a switch and the behavior remained exactly the same.
If your PC can't ping out on the internet, and your SG-1100 can't too.
The arrow clearly points towards the ISP or Modem.Well techically it could be your switch too , but .....
Does the SG-1100 connect directly to the modem , or also via a switch ?What did you ping ?
8.8.8.8 or 1.1.1.1 or ???Don't ping by dns name, when doing "low level" debugging , but by ip address.
/Bingo
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@bingo600 Any ping on the internet like 8.8.8.8 fails. When I did a tracert to 8.8.8.8, it only managed 4 hops but I could successfully ping the last reported router. Since the lack of internet causes my DNS to fail, tracert is unable to resolve the router ip addresses to names so I have no idea if the last router in the list belongs to my ISP or if it is a public router on the internet.
Bert
OnEdit: I should have mentioned that all of the above was true before the last tech reprovisioned my modem. Now, I can’t even ping my external DG
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@bert-0
If you give the ip(s) , i'll look it up for youAhh . Now no connection at all .. Sorry to hear.
But that must make "Good case at the ISP"Drop mentioning pfSense during ISP conversations , just use the PC (enable firewall)
That would make it somewhat harder for them to point at the "complicated firewall" as the cause.
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@bingo600 The router ip was 24.244.60.53
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@bert-0 said in No Internet:
24.244.60.53
Here's the info for that IP
xxx:~$ host 24.244.60.53 Host 53.60.244.24.in-addr.arpa. not found: 3(NXDOMAIN)xxx:~$ whois 24.244.60.53 # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2022, American Registry for Internet Numbers, Ltd. # NetRange: 24.244.0.0 - 24.244.63.255 CIDR: 24.244.0.0/18 NetName: SHAW-COMM NetHandle: NET-24-244-0-0-1 Parent: NET24 (NET-24-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: Shaw Communications Inc. (SHAWC-1) RegDate: 2000-02-04 Updated: 2012-03-20 Comment: ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE Ref: https://rdap.arin.net/registry/ip/24.244.0.0 OrgName: Shaw Communications Inc. OrgId: SHAWC-1 Address: Suite 800 Address: 630 - 3rd Ave. SW City: Calgary StateProv: AB PostalCode: T2P-4L4 Country: CA RegDate: 2003-07-09 Updated: 2014-06-11 Ref: https://rdap.arin.net/registry/entity/SHAWC-1 OrgAbuseHandle: SHAWA-ARIN OrgAbuseName: SHAW ABUSE OrgAbusePhone: +1-403-750-7420 OrgAbuseEmail: internet.abuse@sjrb.ca OrgAbuseRef: https://rdap.arin.net/registry/entity/SHAWA-ARIN OrgTechHandle: ZS178-ARIN OrgTechName: IP Admin OrgTechPhone: +1-403-648-5711 OrgTechEmail: ipadmin@sjrb.ca OrgTechRef: https://rdap.arin.net/registry/entity/ZS178-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2022, American Registry for Internet Numbers, Ltd. # xxx:~$ -
@bingo600 Thank you. Shaw is my ISP and I suspected that the router was theirs but, without internet access, I couldn’t prove it.
They have scheduled a tech to come on site tomorrow so the can blame the firewall face to face. I just wanted to verify that I didn’t miss something.
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If it manages 4 hops, it's not your firewall. Regardless, you can test by connecting your computer directly to the modem to see if that works. One thing I've noticed is ISPs are all to quick to blame a customers firewall, without even looking at the problem.
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@bert-0 said in No Internet:
They have scheduled a tech to come on site tomorrow so the can blame the firewall face to face.
Make sure he tries with his own computer, so that your gear is entirely out of the picture. I had a problem with IPv6 with my ISP a few years ago. Their network guy refused to even look at the problem because I had my own firewall, even though my next door neighbour had the same problem using only the modem in gateway mode. Also, I had identified the failing equipment in the head end by host name. I was able to get a senior tech out and his own modem & computer failed, so he went back to the office and connected to 4 different CMTS. They all worked, except the one I was connected to and had identified. The problem was resolved shortly after that.
BTW, since you're on Shaw, you should have IPv6 available.
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@jknott I tried in vain to explain that none of the Shaw routers are on my network and, therefore, the outgoing traffic was traversing both my firewall and the modem. No luck :-(
Right now, I would settle for an IPv2 address if it would get me on the internet. I'd prefer to not complicate things more by introducing to idea of an IPv6 address. If they don't know how to read the output of a tracert or what a router is, I suspect that IPv6 would cause their heads to explode. :-(
Bert
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@jknott BTW: I am new to CMTs. How can you tell if a device you hit is a CMT or not?
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@bert-0 said in No Internet:
BTW: I am new to CMTs. How can you tell if a device you hit is a CMT or not?
A CMTS is the device you connect to at the cable company head end. I used Wireshark to examine the DHCPv6-PD packets and saw the error message that identified, by host name, the failing system.
Anyway, as I said, try connecting a computer to your modem directly. And if a tech comes make sure he can connect with his own equipment.
BTW, have him try test-ipv6.com to show you everything is working properly. You should get 10/10.
