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Forum Discussion
CAX80 Drops VPN connections
About 6 months ago I purchased a CAX80 to act as my gateway/router for Comcast Internet. I have several devices working on the router without issue but my work VPN connection drops often. I have a ve...
stroked250 wrote:About 6 months ago I purchased a CAX80 to act as my gateway/router for Comcast Internet. I have several devices working on the router without issue but my work VPN connection drops often. I have a very good download and upload speed, about 500 down and 20 up. This was not an issue with my old Nighthawk 7000 AC1900.
I am connecting to VPN via CISCO IPSec with all the latest firmware, drivers, and software on both the PC and Nighthawk. I can't recall all of the router settings I have made in order to correct the issue, but I eventually returned it to factory settings and only disabled guest networks. For some time I did connect all other devices to guest but that did not help.
Any idea on why only my work issued laptop seems to have problems with VPN?
I have already confirmed the recommendations below:
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.
Be sure to power OFF the modem for 1 minute then back ON.
Not much to work with. Often VPN systems include some type of logging feature that would show connections, disconnections, and etc. These could be on your work computer or at work where the VPN server is located.
Are you connecting your work computer to the CAX80 via Wi-Fi or via Ethernet cable?
Hi, thank you for your reply.
I am connected via WIFi. No other devices in the house drop connections. The VPN I use is Cisco IPSec with split-tunnel for Teams traffic and Microsoft updates. I have offloaded IpSec logs to the IT team but they didn't find anything outstanding.
We used to have an issue with Alexa Devices dropping but that seemed to be corrected with a Nighthawk firmware update.
stroked250 wrote:Hi, thank you for your reply.
I am connected via WIFi. No other devices in the house drop connections. The VPN I use is Cisco IPSec with split-tunnel for Teams traffic and Microsoft updates. I have offloaded IpSec logs to the IT team but they didn't find anything outstanding.
We used to have an issue with Alexa Devices dropping but that seemed to be corrected with a Nighthawk firmware update.
I presume you connect to the 5 GHz Wi-Fi band. On your home Wi-Fi, do you have configured separate SSIDs for the 2.4 and 5 GHz bands?
Do you have a way to connect your work computer to your CAX80 via Ethernet cable? Might be worth a try for testing to eliminate the Wi-Fi connection as a problem.
I have tried on both the 2.4 and the 5GHz SSIDs, and yes, the SSIDs are unique. I can purchase a new long ethernet to test off WiFi, but no other device has issues. This seems to be some conflict with VPN and the router that I just can't pinpoint.
It seems that my Ping times to the VPN concentrator randomly spike and I am not sure if that is related to the drops but it surely doesn't help. VPNs are finicky. My old Nighthawk did not have the issue but I was due for an upgrade.
What do your have configured for your Domain Name Servers on your router?
Are you using your ISP's default DNS for both primary and secondary?
Who is your ISP?
Do you have IPv6 configured on your router?