Server communication failure. Please refresh your browser and try again.

lyndontrm
Posts: 2
Joined: Thu Apr 20, 2017 1:20 pm

Server communication failure. Please refresh your browser and try again.

Postby lyndontrm » Thu Apr 20, 2017 1:32 pm

Hello,

We are running ME 8.61

Some of our users are getting the error "Server communication failure. Please refresh your browser and try again." when trying to send mail from Webmail.

Things I have already tried
- Set <pages validateRequest="false" /> in web.config (was already set to fault)
- Add <pages validateRequest="false" /> in .NET4 web.config (threw an error to say there was a duplicate tag for pages)
- Add <validateRequest="false" /> in the pages section for the .NET4 web.config (IIS failed to restart)
- ran MEinstaller and chose option 13 and restarted IIS (problem was still occuring)

Any ideas would be appreciated.

Regards,

Lyndon

MailEnable-Ian
Site Admin
Posts: 8344
Joined: Mon Mar 22, 2004 4:44 am
Location: Melbourne, Victoria, Australia

Re: Server communication failure. Please refresh your browser and try again.

Postby MailEnable-Ian » Thu Apr 20, 2017 10:15 pm

Hi,

Are you able to inspect the Windows event application log and check for ASP.NET errors that are occurring at the time of the server communication error as it will contain more information. Post the results here.
Regards,

Ian Margarone
MailEnable Support

lyndontrm
Posts: 2
Joined: Thu Apr 20, 2017 1:20 pm

Re: Server communication failure. Please refresh your browser and try again.

Postby lyndontrm » Fri Apr 21, 2017 7:31 am

Hi Ian,

Thanks for the response. The error in the log was a "A potentially dangerous Request.Form value was detected from the client"

I managed to resolve the issue by adding the line requestValidationMode="2.0" in the httpRuntime tag in the web.config.

Regards,

Lyndon

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