Proroute H685 - Port Forwarding Not Working; Serial DTU Point-To-Point Solution Not Working

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Forallenquiriespleasevisitwww.proroute.co.uk

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PROROUTEisonline.Sometimesthe

ISPnotgivetherightDNSserverIP,

youcantrytosetcorrectDNS

manuallyatyourPCorDevicenetwork

card.

2. SIMcardbusinessproblem CheckAPNparameterofWANport,

thenmakeitcorrectandtry.Double

confirmwiththeISP/Carrierifthesim

cardinfois100%correct.

Trytochangeanothersimcardtotry.

3 Signalistooweak Tooweaksignal maycausealltheDNS

resolution fails. Try to get better

signal.

4 Networkistoobad ContactISP/Carriertogetbetter

network

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3.16Portforwardingnotworking

Question:Iconfiguretheportforwardingfeaturecorrectly,butstillnowork.

Answer:first,pleasechecktheportifblockbyyourISP/Carrier,because someISP/Carrierblock

someportsforsecurityreason.

Forexample,thePROROUTEm getsWANIP27.38.14.223.AndthePROROUTE’swebport

is80.

Sofromtheothernetwork,trytovisithttp://27.38.14.223:80ifcanbeokay.Ifnookay,it

meanstheISP/Carrierblocksthe10000port.ThencheckwithyourISP/Carrierwhichportsare

openforuse.Thenre‐trytheportforwardingfeature.

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3.17SerialDTUpoint‐to‐

pointsolutionnotworking

Problem:TaketwoPROROUTE.BothsupportSerialtocellulargatewayfeature(DTUfeature).

Configureoneasclient,theotherasserver.Butnowork.

Answer:First,weconfirmthatthePROROUTEbothareonline,andtheserver’sIPispublicIP

thatcanbepingthroughfrom

othernetworks.

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Second,weconfirmbothPROROUTE’sDTUfeature(SerialtoCellularFeature)areworking.We

testanexampleasfollows,

PROROUTEDTUwithvodafoneSIMasclient(inGermany)‐‐‐ChinaTelecomasserver(InCh ina):

working

PROROUTEDTUwithvodafoneSIMasserver(inGermany)‐‐‐ChinaTelecomasclient

(InChina):

working