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WARNING - Vigor 3910 firmware issues

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08 Sep 2022 21:06 #101726 by rolandrat
Replied by rolandrat on topic Re: WARNING - Vigor 3910 firmware issues
4.3.2 final now released on global site.
Still not happy with it in particular I have 2 x 1Gb WAN connections and I use some domain based routing to split the connections to the same end service.
Cant put finger on it but its slow to ramp up the speed, I could max out at circa 220MB/s over both connections almost instantly on 4.3.1, on this release it takes ages to increase speed and falls quite a bit short of the maximum. Swapped back to 4.3.1 and its fine again. Ive done this twice now with same result.
Sticking with 4.3.1, which is rock solid for me.

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12 Sep 2022 07:56 #101738 by johngalt
Replied by johngalt on topic Re: WARNING - Vigor 3910 firmware issues

rolandrat wrote:
4.3.2 final now released on global site.
Still not happy with it in particular I have 2 x 1Gb WAN connections and I use some domain based routing to split the connections to the same end service.
Cant put finger on it but its slow to ramp up the speed, I could max out at circa 220MB/s over both connections almost instantly on 4.3.1, on this release it takes ages to increase speed and falls quite a bit short of the maximum. Swapped back to 4.3.1 and its fine again. Ive done this twice now with same result.
Sticking with 4.3.1, which is rock solid for me.



Hi rolandrat,

Does this lower speed issue happen with most domains or only with specific domains? Any domain names to share for a try? Also which WAN ports are in use? I would also like to try on our Vigor 3910. Thanks!

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13 Sep 2022 09:11 #101749 by jhtwu
Replied by jhtwu on topic Re: WARNING - Vigor 3910 firmware issues

rolandrat wrote:
4.3.2 final now released on global site.
Still not happy with it in particular I have 2 x 1Gb WAN connections and I use some domain based routing to split the connections to the same end service.
Cant put finger on it but its slow to ramp up the speed, I could max out at circa 220MB/s over both connections almost instantly on 4.3.1, on this release it takes ages to increase speed and falls quite a bit short of the maximum. Swapped back to 4.3.1 and its fine again. Ive done this twice now with same result.
Sticking with 4.3.1, which is rock solid for me.



It looks like the accelerator engine issue
I suggest you can download debug log and send to support@draytek.com
Diagnostics >> Debug Logs

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28 Sep 2022 17:08 #101809 by visionmill
Replied by visionmill on topic Re: WARNING - Vigor 3910 firmware issues
I have a 10gb fiber link to an outbuilding using SFP+ in both the 3910 and a Mikrotik 10gb switch (running SWOS). I've also tried this with a netgear 4250 with the same result

Vlan1 is untagged, vlan 2 and 3 are tagged on this link.

From a cold boot everything works correctly and will continue to work. If I turn off the Mikrotik over night and repower in the morning the link lights come on but I don't get any traffic / DHCP. A fast reboot of the 3910 doesn't fix the problem, but a normal reboot does. Rebooting the Mikrotik makes no difference.

I've just downloaded the logs and in the current, I have a lot of TX failed to port [4] .....failed ??? ret=0/1. I don't have anything connected to P4 on the 3910 - maybe that's something else and not related. Not sure what I would be looking for in the logs or if this is a 4.3.2 issue.

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29 Sep 2022 14:23 #101814 by jhtwu
Replied by jhtwu on topic Re: WARNING - Vigor 3910 firmware issues

visionmill wrote:
I have a 10gb fiber link to an outbuilding using SFP+ in both the 3910 and a Mikrotik 10gb switch (running SWOS). I've also tried this with a netgear 4250 with the same result

Vlan1 is untagged, vlan 2 and 3 are tagged on this link.

From a cold boot everything works correctly and will continue to work. If I turn off the Mikrotik over night and repower in the morning the link lights come on but I don't get any traffic / DHCP. A fast reboot of the 3910 doesn't fix the problem, but a normal reboot does. Rebooting the Mikrotik makes no difference.

I've just downloaded the logs and in the current, I have a lot of TX failed to port [4] .....failed ??? ret=0/1. I don't have anything connected to P4 on the 3910 - maybe that's something else and not related. Not sure what I would be looking for in the logs or if this is a 4.3.2 issue.



Seems not easy to identify the issue, I think it should be some bug of 3910 about vlan, you can call for DrayTek support with debug logs

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29 Sep 2022 14:28 #101815 by jhtwu
Replied by jhtwu on topic Re: WARNING - Vigor 3910 firmware issues

jhtwu wrote:

visionmill wrote:
I have a 10gb fiber link to an outbuilding using SFP+ in both the 3910 and a Mikrotik 10gb switch (running SWOS). I've also tried this with a netgear 4250 with the same result

Vlan1 is untagged, vlan 2 and 3 are tagged on this link.

From a cold boot everything works correctly and will continue to work. If I turn off the Mikrotik over night and repower in the morning the link lights come on but I don't get any traffic / DHCP. A fast reboot of the 3910 doesn't fix the problem, but a normal reboot does. Rebooting the Mikrotik makes no difference.

I've just downloaded the logs and in the current, I have a lot of TX failed to port [4] .....failed ??? ret=0/1. I don't have anything connected to P4 on the 3910 - maybe that's something else and not related. Not sure what I would be looking for in the logs or if this is a 4.3.2 issue.



Seems not easy to identify the issue, I think it should be some bug of 3910 about vlan, you can call for DrayTek support with debug logs



Maybe you can check "Diagnostics >> ARP Cache Table", check if any wrong data for IP/MAC/VLAN/Port

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