I’m having some trouble at a number of my sites with Speedfusion bonding and packet loss. I’m deploying Max Transit Duos (FirstNet versions) and while my AT&T Cell links work fine, nearly all my Verizon links are unusable and a fair amount of my residential WiFI links are also unusable I am using the Balance SDX unit on my receive side behind a Palo Alto firewall with port forwarding in place to forward UDP 4500-4510 and TCP 32015-32025 and I’ve confirmed that the firewall is passing everything cleanly. My Speedfusion tunnels are all Layer2 with the SDX in Drop-In Mode as I’m behind a larger firewall that is handling all the local network needs; the SDX is basically acting as a VPN Concentrator only. My receive side is on a 1gig link that is relatively lightly used so it doesn’t appear to be a local congestion issue.
With Verizon, all my sites have good to excellent signals across multiple bands (I’ve seen 2, 4, 13, 66 at differing sites, most seeing many strong bands) but when I add them to a Speedfusion pool, the packet loss jumps by a factor of 10 practically knocking the site offline. Latency tends to be approx. 50 msec and is stable, but when Speedfusion tries to send packets out the Verizon side, it just doesn’t work.
Most of my WiFi links are backed by cable modems (Comcast and WOW mostly) and while not as bad, I’m getting very similar results with them as well causing me to be unable to use a fair amount of those too. It doesn’t appear to be the WiFi though as in the places where I can hard line, the results are identical to what I saw on WiFi.
I have FEC set to high on the Speedfusion configuration and I have tried WAN Smoothing, but that didn’t have any effect; it pretty universally made things worse as it tried to send even more data on the poor networks… I have a latency cutoff of 250msec set, but like I said, it doesn’t seem to be a latency issue, it’s straight packet loss. My antennas are primarily Puma 401 antennas, but I have a few Panorama WMMG-7-27-5SP panels in the mix too in locations that needed some signal help.
The only way I’m able to use these sites in any semblance of good condition is to take the heavy packet loss links out, but that’s completely negating Speedfusion and all the bonding/resiliency benefits available with it. Once I do that though, I’m able to at least maintain and mostly stable (as stable as cellular gets) connection out; only relying on the single AT&T line. If I disable Speedfusion, it seems that my high packet loss connections clean right up and stabilize.
One last bit, I have two sites where I am able to use Verizon because it doesn’t experience the packet loss seen elsewhere. The same applies with my WiFi, I have two sites where WiFi is working well (both backed by Comcast residential like the others). If it were all sites being consistent, I’d be pointing at something in my configurations, but these are all set the same so I’m at a bit of a loss as to what’s going on. On the Verizon side, I have my Rep working with Tech Support trying to find something, but as of yet nothing. I have also cycled through the bands thinking I had hit a congested cell, but I get the same results on all bands.
Has anyone experienced this before? I’m at a bit of a loss as this is spread out across my market, but with such quality signals (and good WiFi in most places too) we shouldn’t be seeing this issue. I’m open to pretty much any idea to try to mitigate this. Thanks all for your help.