Network troubleshooting conundrum - next steps?
Discussion
So a couple of things from this
1) EE lets you ping internet hosts and you determined you can get a consistent reliable response (when connecting to the Huawei directly)
2) USG for whatever reason is failing to send or receive sufficient numbers of these pings to drop the route monitor, or that it never comes up
Can you completely unplug the VDSL/WAN2/eth2 router from the USG, then SSH onto the USG and run your ping from the command shell? You can also use 'traceroute' on the USG CLI to confirm your routing hops across EE's network.
If show load-balance watchdog shows that its down, I would suggest going a step further and actually deleting the WAN2 internet connection in your Unifi controller, which should cause it to re-provision and tear down the load balanced / route monitoring setup.
1) EE lets you ping internet hosts and you determined you can get a consistent reliable response (when connecting to the Huawei directly)
2) USG for whatever reason is failing to send or receive sufficient numbers of these pings to drop the route monitor, or that it never comes up
Can you completely unplug the VDSL/WAN2/eth2 router from the USG, then SSH onto the USG and run your ping from the command shell? You can also use 'traceroute' on the USG CLI to confirm your routing hops across EE's network.
If show load-balance watchdog shows that its down, I would suggest going a step further and actually deleting the WAN2 internet connection in your Unifi controller, which should cause it to re-provision and tear down the load balanced / route monitoring setup.
theboss said:
So a couple of things from this
1) EE lets you ping internet hosts and you determined you can get a consistent reliable response (when connecting to the Huawei directly)
2) USG for whatever reason is failing to send or receive sufficient numbers of these pings to drop the route monitor, or that it never comes up
Can you completely unplug the VDSL/WAN2/eth2 router from the USG, then SSH onto the USG and run your ping from the command shell? You can also use 'traceroute' on the USG CLI to confirm your routing hops across EE's network.
If show load-balance watchdog shows that its down, I would suggest going a step further and actually deleting the WAN2 internet connection in your Unifi controller, which should cause it to re-provision and tear down the load balanced / route monitoring setup.
I think it's sending enough - it tries the number of times I specify.1) EE lets you ping internet hosts and you determined you can get a consistent reliable response (when connecting to the Huawei directly)
2) USG for whatever reason is failing to send or receive sufficient numbers of these pings to drop the route monitor, or that it never comes up
Can you completely unplug the VDSL/WAN2/eth2 router from the USG, then SSH onto the USG and run your ping from the command shell? You can also use 'traceroute' on the USG CLI to confirm your routing hops across EE's network.
If show load-balance watchdog shows that its down, I would suggest going a step further and actually deleting the WAN2 internet connection in your Unifi controller, which should cause it to re-provision and tear down the load balanced / route monitoring setup.
Will have a go at pinging from the CLI - I think I did this previously with the ADSL disconnected, but worth a refresher. Pretty sure it timed out with no hops at all being shown.
Presumably disabling the second port will do the same as the last suggestion. Will give that a go.
The vendor's completely stumped too. They have a case open with Ubiquiti and have sent them the support file and other details. Hopefully that will yield something (and hopefully not "it just doesn't work"
Doubt I'm the only one with this sort of setup).FIXED!
The vendor I used for the USG has been great, plugging away at troubleshooting. Unifi have been OK too, though we had collectively reached the point of going round in circles on this.
So this weekend I was about to rip out the USG and simply revert to using the Huawei as the gateway router as well as modem etc.
Checking up on a few config settings for the Huawei before doing this, I came across another site with a thread that looked like it might help. And lo, so it has!
It turns out the Huawei has hidden settings that can be used when configuring an APN. One of these enables you to force the Huawei to certain types of IP addressing (IPv4, IPv6 or both). So I set up an APN to use just IPv4.
I wasn't hugely hopeful, but setting it up and it worked!
For ref (think I posted these a while back, but here again):
ADSL2 - 12Mbps download, 1Mbps upload
Huawei with 3 sim - 17Mbps download, 5Mbps upload
Huawei with EE sim - 90Mbps download, 13Mbps upload
Very happy now
(Thread here with useful info on the B818 if needed - https://www.ispreview.co.uk/talk/threads/huawei-b8...
Really appreciate the input on this thread to all those who posted. Kept me persevering.
Will now update Ubiquiti as their USG doesn't seem to play nicely with IPv6 in this sort of setup.
The vendor I used for the USG has been great, plugging away at troubleshooting. Unifi have been OK too, though we had collectively reached the point of going round in circles on this.
So this weekend I was about to rip out the USG and simply revert to using the Huawei as the gateway router as well as modem etc.
Checking up on a few config settings for the Huawei before doing this, I came across another site with a thread that looked like it might help. And lo, so it has!
It turns out the Huawei has hidden settings that can be used when configuring an APN. One of these enables you to force the Huawei to certain types of IP addressing (IPv4, IPv6 or both). So I set up an APN to use just IPv4.
I wasn't hugely hopeful, but setting it up and it worked!
For ref (think I posted these a while back, but here again):
ADSL2 - 12Mbps download, 1Mbps upload
Huawei with 3 sim - 17Mbps download, 5Mbps upload
Huawei with EE sim - 90Mbps download, 13Mbps upload
Very happy now
(Thread here with useful info on the B818 if needed - https://www.ispreview.co.uk/talk/threads/huawei-b8...
Really appreciate the input on this thread to all those who posted. Kept me persevering.
Will now update Ubiquiti as their USG doesn't seem to play nicely with IPv6 in this sort of setup.
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