Xplornet - ViaSat to Airport Extreme connection

I am currently trying a 30 trial of Xplornet high speed internet via satellite.

I have a new ViaSat modem.

When I 1st hooked up my Airport Extreme the modem kept kicking off (power off). seemed strange but consistently repeated failure. I had the ViaSat modem replaced and the same thing happened. Their tech help was useless on this matter but the installer suggested a network switch or router (with WiFI off) in-between the ViaSat modem and the Airport Extreme. This worked!!!

When I bought and tried a simple network switch the failure resurfaced. Back to the router and OK.


The problem now is that there seems to be too much of a delay (latency is high for the satellite anyway). The delay causes WIFI assist iPhone calls, FaceTime, Skype for business calls and Web x delays that make a conversation impossible.


Any possible suggestions on how to resolve the delays that I suspect are being caused by Airport Extreme or router in from of it.

Posted on Jul 6, 2018 4:43 AM

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11 replies

Jul 6, 2018 4:56 AM in response to TWGrace

Lets go back to the main issue..


You ViaSat modem should not just switch off with a router connected..


Tell me more about the setup.. if you plug a computer directly into the modem.. what IP do you get?? Gateway (router in AppleSpeak) and DNS?? Generally it is 10.x.x.x with satellite systems. And this is a problem.. since Airport uses 10.0.1.1 as its home IP.


So first thing to try IMHO the basic issue is not your home network but is inherent in any satellite communications.. the shear distance travelled introduces a latency that cannot be overcome.


Test what is the latency with a direct connection to the modem..


Then if the modem / satellite system is using 10.x.x.x ie any IP that begins with 10.. move the IP of the Airport Extreme to 192.168.1.x here.

You should be in router mode.. so DHCP and NAT.. and you can see default to 10.0.1.x

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Click on the network options on the bottom of the page.

And select 192.168 here


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The Airport will then use 192.168.1.1 as home address..


This might stop the issue with the Airport crashing the modem.. as the IP clash.


And then you won't need the switch.. tell me if it works as well as the actual IP you get.

Jul 6, 2018 1:07 PM in response to LaPastenague

Thanks for the response this morning and I have just finished trying your suggestions.


First, I agree that it doesn't make sense to me that a router (Airport Extreme) should cause the modem to trip out but it does and did on 2 new ViaSat modems. Tech help from Xplornet was of no help on this matter and it was the installers 2nd trip back when he suggested a 'Network switch' and actually gave me one and it worked. The issue seems to be with Apple products/


I have tested the ViaSat modem directly wired to my MacBookPro and it worked OK. Below are the screen shots of that set up. I did speed tests as well.


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I hooked up the Airport Extreme to the ViaSat modem and it tripped out the modem again.


I then made the change to the DHCP range you suggested to the 198.168 range. This resolved the issue of the modem tripping out.


Here are the after shots of the Airport Extreme.


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I can't actually tell what if anything changed in the addresses but it has resolved the conflict.


Now onto the latency issue.


Xplornet tech help was again useless or evasive as to what latency I should expect (I know what I get through Bell DSL) but he failed to provide this for me. The installer told me to expect 600-700 ms which is compared to 20-60 ms on my DSL. I had and have been testing in that range. I know this will cause delays and might be more than I can accept. The issues seem more than just .7 of a second and is unacceptable on things like WIFI assist calls, Skype, Web X, FaceTime etc. The latency seems the same either direct connect or through the switch/router work around I had.


The resolution of conflict in my router at least eliminates this from the equation.


Thanks so much for your help and taking the time to respond. If you see anything in my set feel free let me know.



Thom

Jul 6, 2018 2:35 PM in response to TWGrace

Thanks for the feedback and excellent screenshots.. that helps me see what is happening.

The change in IP fixed one problem.. it means the satellite system is using 10.x.x.x address somewhere in the system.. but interestingly you are actually getting a special IP which is not public but likely CGNAT.


As a test you could try doing a traceroute from the terminal to any normal web address.. e.g. google public dns like 8.8.8.8 and see what you come up with. I would expect some 10.x.x.x numbers in there.


traceroute 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets

1 rt-ac3200-82f0 (192.168.2.254) 1.837 ms 0.932 ms 1.040 ms

2 melbvoc-lns12.mel.eftel.com.au (203.123.68.185) 17.571 ms 17.784 ms 17.745 ms

3 po-1-353.core1.mel.eftel.com.au (203.123.68.193) 17.927 ms 18.200 ms 17.613 ms

4 203.123.69.134 (203.123.69.134) 18.702 ms 19.230 ms 18.841 ms

5 233.1.2.123.network.m2core.net.au (123.2.1.233) 29.813 ms 29.898 ms 30.311 ms

6 74.125.52.10 (74.125.52.10) 30.598 ms 31.620 ms 31.537 ms

7 108.170.247.33 (108.170.247.33) 31.130 ms

108.170.247.81 (108.170.247.81) 31.326 ms

108.170.247.49 (108.170.247.49) 31.451 ms

8 216.239.41.1 (216.239.41.1) 30.514 ms

216.239.41.189 (216.239.41.189) 82.072 ms

66.249.95.51 (66.249.95.51) 31.713 ms

9 google-public-dns-a.google.com (8.8.8.8) 126.147 ms 29.250 ms 136.867 ms


The problem with high latency links is the way it interacts with other links like wireless which share bandwidth and can also be high latency.


Apple does not give us anyway to fix packet size in wireless.. but the usual solution to this is reduction of packet size.


The issues seem more than just .7 of a second and is unacceptable on things like WIFI assist calls, Skype, Web X, FaceTime etc.

You really need hard wired connections for anything interactive on your end.. wifi is just going to work terribly. And btw that is the case with even a double hop wireless system.


For example you are using double hop wireless.. so if you are trying to make a call over wifi from your phone.. and the phone connects to one of the express instead of the extreme.. the connection will become near unusable. I found this out myself the hard way. If you at least remove the double hop this will help. ie the phone must connect to the airport extreme.. never the express.


In the end you could try with a wireless router that allows pro level access to reduce packet size.. and you must eliminate double hop wireless.


However I think the satellite is probably just not going to work well enough for this.


If you can afford it.. the best solution is to keep the DSL network going.. and use it specifically for any interactive calls you are going to use. Keep the satellite for data streams.

Jul 22, 2018 7:43 AM in response to LaPastenague

Good morning,

Following up on my earlier post and updating where I am at.


Your suggestion to keep both my DSL and the high speed satellite sounded good. I played with it a while and decided that the latency, even on streaming caused videos to stop and go. I've decided that th expense is not worth it and canceled my 30 day trial.


Now what I have is Bell DSL at 5.0M/B down / 0.7 M/B up with 20 ms latency.


My wife, who uses a home office for work. She uses Skype for Business and web ex for video calls and conferencing and runs webinars. She normally is ok with the current speed UNLESS other users in the house stream videos at the same time etc.


The set up I am trying to prioritize her computer is I have the Bell modem (DSL hooked to it) and created a network that only she logs into. I then ethernet from this hub to my Airport Extreme and set up a network with extended.


Is there any advantage to this set up or any other way I can prioritize her to the available signal available/


Thom

Jul 22, 2018 9:36 AM in response to TWGrace

Is there any advantage to this set up or any other way I can prioritize her to the available signal available

There is, but not with the current networking hardware that you have. You would need hardware that support VLANs. These would allow you to control traffic priorities on your local network. Your Apple Extreme only supports a very simple type of VLAN with its implementation of a Guest Network ... but this would not be the VLAN solution for what you are considering.


Instead, you would need to replace your Extreme with a router that does support "true" VLAN implementation. These are typically business-grade, but numerous consumer-grade models do as well.


Regardless, even if you can provide her with full priority, voice over IP, is going to be problematic as you also have to take into consideration uplink speed as well. Ideally, you will want something in the order of 10 Mbps (down) / 5 Mbps (up) as a minimum with low latency. Otherwise voice communications will sound "under water." A number of companies are "technology" oriented and she may find that her's can help by providing her with high speed Internet service if she is working from home full-time.

Jul 22, 2018 2:25 PM in response to TWGrace

I agree with Tesserax .. you need a router with much better controls.


VOIP is fine over standard ADSL type upload speeds.. but video calls no.. it will require much better bandwidth to get smooth video.. especially if running webinars. Check your local 4G supplier.. although it is expensive you can get much better bandwidth now if the signal in your area is high enough. You can easily test it by tethering your phone to the computer. Much better than Satellite in terms of latency although of course it is never going to match a wired connection.


A suitable router does not need to be expensive.

One of the best is a 3rd party firmware called Gargoyle, which you load to a cheap router.. e.g. WNDR3800 or WD mynet N750 .. you can buy them second hand for a few dollars. They don't have great wireless so you can keep the airport extreme as WAP only. They have a very limited list of newer routers. The best and cheapest is Linksys WRT1200AC.

I am not sure how you have the Extreme setup with ADSL but whichever router you use would need to take over as main router.. so PPPOE is passed from the modem to the router.. modem is bridged.


I use Asus router now.. their better models RT-AC68U and above have excellent firmware developed from 3rd party by Asus themselves.. it now has most of the features you will find in the better grade routers but with a fairly simple GUI setup.. During the time your wife is doing her webinars she would need full dedication of the upload on adsl.. this is possible by setting throttling limits or even the QoS might be sufficient. You need to sacrifice the rest of the network to a very small amount of upload while she is streaming.


More pro level like Ubiquiti is also not over expensive but have a fairly steep learning curve.

Jul 22, 2018 4:17 PM in response to LaPastenague

Thanks for the replies...


Bottom line is that we are out in the country with very little cellular service and the only thing available is either Satelite or the DSl I have from Bell. I won't get better until someone run fiber out here which maybe never.


I don't need to spend money on more routers when the supply is limited.


I will have her explore the idea that Tesserax suggested and her her contact the companies IT department.


Thanks..

Jul 23, 2018 9:49 AM in response to TWGrace

2.4 GHz signals are stronger.....but slower.....than 5 GHz signals

5.0 GHz signals are weaker.....but faster.....than 2.4 GHz signals


If a device is capable of connecting to either 2.4 GHz or 5.0 GHz, then it will connect at the 5.0 GHz rate if it is in the same room or close proximity to the WiFi router.


If the same device moves a few rooms away from the WiFi router, it will connect at 2.4 GHz since those signals are stronger and penetrate obstructions like walls, furniture, etc much more effectively than 5.0 GHz signals.

Jul 23, 2018 1:47 PM in response to TWGrace

The speed of 2.4ghz is poorer than 5ghz.. as Bob has indicated.. but be assured it is more than adequate for your slow ADSL. Using either band will make almost no difference where you live.


For people crowded into apartments in the city.. with every neighbour running 2.4ghz wifi plus microwaves, security cams, av senders, front door bells, baby monitors, cordless phones, garage door openers etc etc.. it is really hard now to get useful reliable connections on 2.4ghz.


Crazy vendors of new routers offer higher and higher speeds on 2.4ghz using up all the channels in one go for absolutely no useful results. So 5ghz has become essential now for decent reliable connections. I suspect 5ghz is going to go the same way though.

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Xplornet - ViaSat to Airport Extreme connection

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