L2TP/ipsec VPN connections drop on upload speed tests
My ER605v2 seems to drop LT2P/ipsec VPN connection every time a VPN client do a speed test (both Ookla and fast.com). The drop happens during the upload part of the speed test. I've tested from both a MacBook and an iPhone while be connected to my VPN server (ER605). I tried uploading four heavy files to Google Drive using a VPN connection, and that was not an issue. The issues seems to be related to speed testing only.
What could cause this? Some kind of FW protection that thinks the speed check is some kind of attack? I can't find anything useful regarding the disconnect in the log. The log just says the client disconnected. Could my ISP be causing this?
Its not a big issue, but I want to get to the bottom of why this is happening.
Best,
Markus
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Hi @Clive_A
I tried on a win laptop just now and the outcome is - as you suggested - a bit different. The vpn connection doesn't disconnect, but I'm unable to reach my router for a for a few seconds while doing the speed test.
(I pinged my router while doing the speed test, and I got three request timed out in a row, then pinging is successful again.
On the mac and iphone, the vpn connection fails and does not recover on its own.
markus
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Hi @markie83
Thanks for posting in our business forum.
markie83 wrote
Hi @Clive_A
I tried on a win laptop just now and the outcome is - as you suggested - a bit different. The vpn connection doesn't disconnect, but I'm unable to reach my router for a for a few seconds while doing the speed test.
(I pinged my router while doing the speed test, and I got three request timed out in a row, then pinging is successful again.
On the mac and iphone, the vpn connection fails and does not recover on its own.
markus
That looks like a drain of the session/bandwidth indeed.
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Hi @markie83
Thanks for posting in our business forum.
Try on a Win PC or Android and see if this happens or not.
Never seen this before. I assume it is not a problem with the router instead on your Apple devices.
Could be a drain of sessions. It cannot handle the bandwidth in the speed test as it drains sessions and bandwidth.
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Hi @Clive_A
I tried on a win laptop just now and the outcome is - as you suggested - a bit different. The vpn connection doesn't disconnect, but I'm unable to reach my router for a for a few seconds while doing the speed test.
(I pinged my router while doing the speed test, and I got three request timed out in a row, then pinging is successful again.
On the mac and iphone, the vpn connection fails and does not recover on its own.
markus
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Hi @markie83
Thanks for posting in our business forum.
markie83 wrote
Hi @Clive_A
I tried on a win laptop just now and the outcome is - as you suggested - a bit different. The vpn connection doesn't disconnect, but I'm unable to reach my router for a for a few seconds while doing the speed test.
(I pinged my router while doing the speed test, and I got three request timed out in a row, then pinging is successful again.
On the mac and iphone, the vpn connection fails and does not recover on its own.
markus
That looks like a drain of the session/bandwidth indeed.
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