topic Re: Collector for Arcgis: The Server you are trying to connect cannot be verified in ArcGIS Collector Questions

Collector for Arcgis: The Server you are trying to connect cannot be verified

Electricity_Company_of_Ghana_L — Sat, 21 Oct 2017 16:39:58 GMT

I have setup an on-premise Arcgis server 10.4.1 which has been used for field data collection. Surprisingly over the last week, I did a minimum update on the server and I persistently get a dialog stating "The Server you are trying to connect to cannot be verified". The service has been restarted multiple times but get same error. Features cannot be accessed on the collector application anymore. An urgent help is really needed.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

JasonCiak — Tue, 31 Oct 2017 14:58:10 GMT

I'm experiencing the same issue and it is becoming a bigger and bigger issue and appears to be having something to do with some type of caching. Some devices can open the map correctly and some cannot, and making updates to maps seems to cause problems with the new layers.

Using SSL but it is properly configured. This seemed to happen starting mid day on October 20th.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

JasonCiak — Tue, 31 Oct 2017 15:00:26 GMT

The same maps also load properly in Explorer for ArcGIS - it is just collector that is erroring.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

PeteCrosier — Tue, 31 Oct 2017 15:37:16 GMT

Are the (Android?) devices having problems the ones that have updated to Collector 17.0.3 which was released on October 18th? This seems to be the case here. I think all our field users are on an older version (10.4?) of Collector to mitigate other changes which have happened in the past and changed things that aren't compatible with how they work so this hasn't affected them yet.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

MiaogengZhang — Tue, 31 Oct 2017 16:08:28 GMT

Can you check if the certificate for SSL is valid? Since 17.0.3/17.0.4 release, the change was made to not allow self-signed/untrusted certs due to security concerns that could expose customers to various type of attacks.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

JasonCiak — Tue, 31 Oct 2017 16:40:58 GMT

They are Android GPS units(4.2.2), and also my Galaxy Note 8(7.1.1). I also tried downgrading them to 17.0.2 and I could have swore that the first time I opened the map up on the one GPS unit it loaded properly and then I went to refresh it and it's doing the same thing - except this time since it's 17.0.2 it allows me to click the "Yes" I'm sure even though you cannot verify my certificate.

I called ESRI and they suggested installing the certificate on my devices as well - tried that to no avail.

I'm adding my services directly to a map with ArcGIS Online and using the :6443 in the URL of the REST endpoint - this is correct, yes? It's worked all along. When I view the REST endpoints URL in Firefox the Green lock icon appears in the address bar so I believe the SSL is configured properly, but maybe Collector doesn't like the :6443 port reference?

Any help or suggestions greatly appreciated.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Tue, 31 Oct 2017 17:11:54 GMT

Michael,

You will want to check your rest service URLs on the browsers on the smartphones themselves to confirm the certificate is trusted. Safari for iOS and Chrome for Android. Preventing access for sites that are not trusted were avoidable pre 17.0.3. Now this is a feature that is set and the only way to go around this is to trust the certificate by putting it on your device or using a ca certificate.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

JasonCiak — Tue, 31 Oct 2017 19:55:38 GMT

Hey Dan,

I've confirmed that the URL's are secure in my browsers. This is isolated to Android tablets and smartphones, it appears. My windows and iOS Collector app are loading in fine and prompting me to enter in my ArcServer username and password. Only problem is I have a few clients who are using Android ZenoCollectors for high precision GNSS.

ESRI suggested I try to load my SSL cert directly onto my Android devices but that hasn't seemed to work. Same thing. Ugh. Any suggestions from anyone? Downgrading to 17.0.2 also did not work.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Tue, 31 Oct 2017 20:14:09 GMT

You may want to open a case with technical support. We will be able to look into this further. It doesn't seem to be a certificate issue at this time if you can access the portal over Chrome and Safari on the devices themselves.

Tech support also has access to the leica zenocollector

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

MiaogengZhang — Fri, 03 Nov 2017 15:46:32 GMT

We just published a technical article about this: Problem: Unable to log into ArcGIS Enterprise portal with Collector for ArcGIS when using a self-signed certificate

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

SiCasley — Sat, 09 Dec 2017 00:02:56 GMT

We are experiencing the same issue - has there been any progress on this? I can confirm we are using Collector for Android v17.0.4 on a variety of devices. All our (ArcGIS Server) services are secured, and we don't get the authentication popup on any of our maps. Our server certificate is CA signed and shows as trusted in Chrome on the Android devices. Are there any workarounds?

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

JasonCiak — Sat, 09 Dec 2017 18:15:44 GMT

Our solution/workaround as suggested by ESRI was to manually load the SSL certificate onto the Android device. This can be done by creating a .cer file of your SSL certificate and then loading it onto the Android device by opening and registering the cert on each device you are using. Kind of lame but it worked in our instance. You can use the first paragraph from the article below in order to create the .cer file. I then transferred that to the device via thumb drive and when you open the file on the Android device it asks for name to register it on the device.

Manually Install SSL Certificate in Android Jelly Bean | Guy Rutenberg

"The first step is to export the certificate as a DER encoded X.509 certificate. This can be done using Firefox (on a PC) by clicking on the SSL’s lock sign in the address bar, More Information -> View Certificate -> Details -> Export. The exported certificate needs to be saved on the root directory of the internal storage of the phone, with *.cer extension (or *.crt). Other extensions will not work."

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

SiCasley — Tue, 19 Dec 2017 20:01:25 GMT

Thanks for the suggestion Jason - unfortunately installing the certificate on the device made no difference and we still get the message "The server you are trying to connect to cannot be verified" when opening the map in Collector and none of the layers load.

Seems to be an issue with the way ArcGIS Server (10.3.1 on Windows) is sending out the certificate (with an incomplete chain). The same certificate is used without any issues on one of our other (mail) servers.

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

GISSupport3 — Tue, 19 Dec 2017 22:10:35 GMT

This site MAY assist:

SSL Checker - SSL Certificate Verify

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Wed, 20 Dec 2017 13:55:53 GMT

This one is also helpful and generates a report card for your certificate:

SSL Server Test (Powered by Qualys SSL Labs)

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Thu, 23 Aug 2018 17:44:14 GMT

I am having the same problem. Was this ever resolved?

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Thu, 23 Aug 2018 17:52:00 GMT

Joshua,

The latest versions of Collector are more secure and require trusted certificates to access Portal or ArcGIS Server services in ArcGIS Online.

Problem: Unable to log into ArcGIS Enterprise portal with Collector for ArcGIS when using a self-signed certificate

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Thu, 23 Aug 2018 18:04:12 GMT

Thank you for the reply. Is there any way to get an older version of Collector then?

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

Anonymous User — Fri, 24 Aug 2018 13:21:21 GMT

Joshua,

You are not able to roll back to a previous version of the app:

FAQs for data collection—Collector for ArcGIS | ArcGIS

Re: Collector for Arcgis: The Server you are trying to connect cannot be verified

CassidyKillian — Tue, 11 Sep 2018 16:57:57 GMT

I am experiencing this same issue trying to run Collector on a Galaxy S3. Map opens and I get the server cannot be verified error. We have tried loading the certificates directly on the tablet and it still does not work. We can hit all layers, endpoints, and open the maps in a browser. Appears to be something in Collector blocking the layers from being loaded.