Comments
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Here ist the link to the KB https://community.sonicwall.com/technology-and-support/discussion/7100/tcp-sequence-number-randomization-needs-to-be-disabled-for-some-websites
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Good morning @Chusito I have had this issue a couple of times in the last months and I still have no clue how this suddenly started. Please try if this helps: https://community.sonicwall.com/technology-and-support/discussion/7100/tcp-sequence-number-randomization-needs-to-be-disabled-for-some-websites
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This has been resolved. The SONOS Port were connected to trunk ports on the switches. The untagged VLAN was correct but there was another tagged VLAN on the port with A LOT of traffic (mostly multicast). This seems to have caused the problem. Setting the switch ports to access resolved the problem
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I have run into the same issue. I can ping from the local Sonicwall to a device in the remote subnet if I use Device > Diagnostics > Ping But when I create a Network > Network monitor, the pings will fail. Looking at the Packet Monitor, it looks like the packet is leaving through the WAN interface instead of using the VPN…
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Obviously, we upgraded all those firewalls to the latest version recently.
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Thank you. I have tried again with the Entities.xml. There are a lot of IPs in the File and the XML is valid. But I still get the same error.
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Thank you for your response. migrate from a Sophos to a SonicWall firewall? yes indeed. sorry I was not mentioning this. On the first page of I see the among the supported devices: Sophos SG, XG Series That's why I was even asking here. But yeah, I think will contact support.
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Also is there a way to bulk remove connection profiles? Or start a connection without creating a profile?
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we have used two fiber-to-copper-converters, two SFP modules and one multimode patch cable. if we can, we directly use the modems or the sonicwalls SFP slot. we think this is somehow an electrical issue.
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I am having this issue with a TZ105. Does someone have informations whether the latest firmware will help or if SonicWall will resolve this issue for this model? Also I am struggling with the generation count of the TZ series. The only resource I found was the link below. Is this according to the official way of counting…
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Does anyone have a clue whether there are TZ models and/or SonicOS versions that are not affected by this?
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Thank you for your answers. Highly appreciated. @BWC "some form of Modem for DHCP" Do you think a static IP on x1 could solve this? I will try immediately.
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I have 5018 running with about 4 weeks of uptime and this issue is gone so far. I will keep running 5018 for another month or so. @César_S and @EAnderson_SN were also affected as it seems in this thread: https://community.sonicwall.com/technology-and-support/discussion/comment/8785 Maybe one of them has seen the issue with…
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We have tried many many many things now. The only way that brought us one of the tunnels back to work was a downgrade to R1296, deleting a tunnel and creating it again. The other tunnel is still not working properly, for reasons we don't know...
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Thanks a lot @TKWITS In fact when I change the Peer ID of a working tunnel, I get pretty similar results. We will to talk to the people managing the 3rd-party firewalls.