Hello,
I use Teltonika RUT260 (set to Passthrough mode) with latest available firmware RutOS 7.20.1.
My problem is that System → Maintenance → Seed Test GUI detects my interface 4G/5G Mobile Carrier T-Mobile in Poland and list of available Server, but when I click GUI “Start” button in test it tries to connect, but soon I’m getting error messages with “Connection to the speed test server was lost”or “Server Failed to find provider - Failed to find IP”
I tried with few different servers from SpeedTest proposed server list in Change button
(it detects servers normally) and generally problem is the same, nothing starts.
I tested out different WebBrowsers - MS Edge, Mozilla Firefox 147 no Adblock, Chrome - whatever browser I use, problem remains the same.
Screenshot how it looks like:
Same time when I login to SSH to RUT260 and use CLI - Speedtest starts normally and performs good with the same default server, here: Carrier**:** T-mobile Polska
(IP
BusyBox v1.34.1 (2025-12-18 13:29:56 UTC) built-in shell (ash)
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Teltonika RUT2M series 2025
Device: RUT260
Kernel: 5.15.196
Firmware: RUT2M_R_00.07.20.1
Build: 920eedf3cf1
Build date: 2025-12-19 07:34:15
root@RUT260:~# speedtest -i
{“ip”: “178.183.XX.XX”, “isp”: “T-mobile Polska”}
root@RUT260:\~# speedtest
This speedtest can use up a lot of internet data. Do you want to continue?(y/n)
y
Finding closest server..
The selected server: waw3.t-mobile.pl
beginning setup
Writing data: 8004660, 8087384, 0, 0Average download speed is 64.037mbps Current downloaded 7.713MB
Writing data: 10258008, 20716332, 0, 0Average download speed is 82.064mbps Current downloaded 19.757MB
Writing data: 10957049, 33104280, 0, 0Average download speed is 87.656mbps Current downloaded 31.571MB
Writing data: 11183638, 45217708, 0, 0Average download speed is 89.469mbps Current downloaded 43.123MB
Writing data: 11270575, 58344324, 0, 0Average download speed is 90.165mbps Current downloaded 55.641MB
Writing data: 11701331, 73025336, 0, 0Average download speed is 93.611mbps Current downloaded 69.642MB
Writing data: 11957690, 86165144, 0, 0Average download speed is 95.662mbps Current downloaded 82.173MB
Writing data: 11988874, 98448444, 0, 0Average download speed is 95.911mbps Current downloaded 93.888MB
Writing data: 11918711, 109861092, 0, 0Average download speed is 95.350mbps Current downloaded 104.772MB
beginning setup
Writing data: 0, 0, 3991030, 4259072Average upload speed is 31.928mbps Current uploaded 4.062MB
Writing data: 0, 0, 4012184, 8387840Average upload speed is 32.097mbps Current uploaded 7.999MB
Writing data: 0, 0, 3982834, 12385536Average upload speed is 31.863mbps Current uploaded 11.812MB
Writing data: 0, 0, 3941390, 16317696Average upload speed is 31.531mbps Current uploaded 15.562MB
Writing data: 0, 0, 3939055, 20512000Average upload speed is 31.512mbps Current uploaded 19.562MB
Writing data: 0, 0, 3967703, 24902912Average upload speed is 31.742mbps Current uploaded 23.749MB
Writing data: 0, 0, 3944717, 28900608Average upload speed is 31.558mbps Current uploaded 27.562MB
Writing data: 0, 0, 3919246, 32636160Average upload speed is 31.354mbps Current uploaded 31.124MB
root@RUT260:\~#
List of available SpeedTest servers
root@RUT260:\~# speedtest -g
\[{“lon”:“21.0084”,“country”:“Poland”,“id”:“24120”,“distance”:1,“lat”:“52.2323”,“host”:“waw3.t-mobile.pl:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“122761”,“name”:“Warsaw”,“url”:“http://waw3.t-mobile.pl:8080/speedtest/upload.php”,“sponsor”:“T-Mobile Polska S.A.”,“force_ping_select”:1},{“lon”:“21.0122”,“country”:“Poland”,“id”:“57735”,“distance”:1,“host”:“netperf-pl.gigatrans.ua.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“308232”,“name”:“Warsaw”,“url”:“http://netperf-pl.gigatrans.ua:8080/speedtest/upload.php”,“sponsor”:“Gigatrans PL”,“lat”:“52.2297”},{“lon”:“21.0122”,“country”:“Poland”,“id”:“71890”,“distance”:1,“host”:“pl-lg.h2.nexus:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“317942”,“name”:“Warsaw”,“url”:“http://pl-lg.h2.nexus:8080/speedtest/upload.php”,“sponsor”:“H2NEXUS LTD”,“lat”:“52.2297”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“4166”,“distance”:1,“host”:“war-o1.speedtest.orange.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“102895”,“name”:“Warsaw”,“url”:“http://war-o1.speedtest.orange.pl:8080/speedtest/upload.php”,“sponsor”:“Orange Polska S.A.”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“57911”,“distance”:1,“host”:“speedtestwa1.sweet.tv:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“317040”,“name”:“Warsaw”,“url”:“http://speedtestwa1.sweet.tv:8080/speedtest/upload.php”,“sponsor”:“SWEET TV”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“338”,“distance”:1,“host”:“speedtest.skynet.net.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“169609”,“name”:“Warsaw”,“url”:“http://speedtest.skynet.net.pl:8080/speedtest/upload.php”,“sponsor”:“Skynet DC”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“65089”,“distance”:1,“host”:“war.speedtest.gslnetworks.com.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“321731”,“name”:“Warsaw”,“url”:“http://war.speedtest.gslnetworks.com:8080/speedtest/upload.php”,“sponsor”:“GSL Networks”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“37249”,“distance”:1,“host”:“speedtest-w5-2.net.play.pl:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“95467”,“name”:“Warszawa”,“url”:“http://speedtest-w5-2.net.play.pl:8080/speedtest/upload.php”,“sponsor”:“Play”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“66602”,“distance”:1,“host”:“spdtst-ookla-wwa.ith.eu.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“230690”,“name”:“Warszawa”,“url”:“http://spdtst-ookla-wwa.ith.eu:8080/speedtest/upload.php”,“sponsor”:“ITH Sp. z o.o.”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“68705”,“distance”:1,“host”:“speedtest2.lim.waw.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“181547”,“name”:“Warszawa”,“url”:“http://speedtest2.lim.waw.pl:8080/speedtest/upload.php”,“sponsor”:“DomyNet Sp. z o.o.”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“61843”,“distance”:1,“host”:“smtest.supermedia.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“47761”,“name”:“Warsaw”,“url”:“http://smtest.supermedia.pl:8080/speedtest/upload.php”,“sponsor”:“Supermedia Sp. z o.o”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“21679”,“distance”:1,“host”:“speedtest-ng.atman.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“5682”,“name”:“Warsaw”,“url”:“http://speedtest-ng.atman.pl:8080/speedtest/upload.php”,“sponsor”:“Atman (ATM S.A.)”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“17160”,“distance”:1,“host”:“speedtest.telnaptelecom.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“151576”,“name”:“Warszawa”,“url”:“http://speedtest.telnaptelecom.pl:8080/speedtest/upload.php”,“sponsor”:“Telnap Telecom Sp. z o.o.”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“70948”,“distance”:1,“host”:“pl-1.node.delton.ovh.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“301323”,“name”:“Warsaw”,“url”:“http://pl-1.node.delton.ovh:8080/speedtest/upload.php”,“sponsor”:“Delton Solutions Ltd”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“32927”,“distance”:1,“host”:“speedtest-waw.retn.net.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“307051”,“name”:“Warsaw”,“url”:“http://speedtest-waw.retn.net:8080/speedtest/upload.php”,“sponsor”:“RETN”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“30440”,“distance”:1,“host”:“speedtest.exatel.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“54”,“name”:“Warsaw”,“url”:“http://speedtest.exatel.pl:8080/speedtest/upload.php”,“sponsor”:“Exatel S.A”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“64402”,“distance”:1,“host”:“speedtest.televoice.net.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“115555”,“name”:“Warszawa”,“url”:“http://speedtest.televoice.net.pl:8080/speedtest/upload.php”,“sponsor”:“Televoice Polska Sp. z o. o.”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“21615”,“distance”:1,“host”:“speedtest.jmdi.pl:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“14902”,“name”:“Warsaw”,“url”:“http://speedtest.jmdi.pl:8080/speedtest/upload.php”,“sponsor”:“JMDI Sp. z o.o.”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“8399”,“distance”:1,“host”:“speedtest.techgroup.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“152178”,“name”:“Warszawa”,“url”:“http://speedtest.techgroup.pl:8080/speedtest/upload.php”,“sponsor”:“Techgroup Jakub Osuch”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“70235”,“distance”:1,“host”:“speed.datahouse.net.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“10265”,“name”:“Warsaw”,“url”:“http://speed.datahouse.net:8080/speedtest/upload.php”,“sponsor”:“DataHouse.pl”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“60317”,“distance”:1,“host”:“speedtestooklabal1.plus.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“79231”,“name”:“Warsaw”,“url”:“http://speedtestooklabal1.plus.pl:8080/speedtest/upload.php”,“sponsor”:“Plus”,“lat”:“52.2323”},{“lon”:“21.0084”,“country”:“Poland”,“id”:“72527”,“distance”:1,“host”:“speedtest-pl.the.hosting.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“0”,“name”:“Warsaw”,“url”:“http://speedtest-pl.the.hosting:8080/speedtest/upload.php”,“sponsor”:“THE.Hosting”,“lat”:“52.2323”},{“lon”:“20.7833”,“country”:“Poland”,“id”:“24250”,“distance”:11,“host”:“speedtest.netfala.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“32673”,“name”:“Ożarow Mazowiecki”,“url”:“http://speedtest.netfala.pl:8080/speedtest/upload.php”,“sponsor”:“NETFALA”,“lat”:“52.2167”},{“lon”:“21.2423”,“country”:“Poland”,“id”:“15940”,“distance”:11,“host”:“speedtest.toneticgroup.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“251130”,“name”:“Wolomin”,“url”:“http://speedtest.toneticgroup.pl:8080/speedtest/upload.php”,“sponsor”:“Tonetic Group S.A.”,“lat”:“52.3391”},{“lon”:“20.8057”,“country”:“Poland”,“id”:“57725”,“distance”:26,“host”:“speedtestookla.bluekom.pl.prod.hosts.ooklaserver.net:8080”,“preferred”:0,“https_functional”:1,“cc”:“PL”,“isp_id”:“104255”,“name”:“Nasielsk”,“url”:“http://speedtestookla.bluekom.pl:8080/speedtest/upload.php”,“sponsor”:“BLUEKOM”,“lat”:“52.5899”}\]
root@RUT260:\~#
Do you know what can be source of the problem and how to solve it to work with GUI ?
I turned off my PC firewall as well, tried to check it on diferent laptops but problem remains.
Kind Regards,
Robert.