Intermittent loss of connection

davidd1 · January 2, 2021, 9:07pm

I'm attempting to use R Studio but am experiencing highly intermittment loss of connection to R messages. I have seen that many others have experienced similar problems and suggested updating to 1.4XX but that has not resolved the issue. As further background I am running Windows 10 and the most current version of R. Are there plans to address this issue? Any workarounds in the meantime? Thank you.

MikeBess · January 4, 2021, 5:10pm

Does this show up only when you start the RStudio IDE? Or other times as well? Could you please post a screenshot of the error?

Are you using project files located on a shared drive, or cloud drive (onedrive, google drive, NAS, etc...)? See

github.com/rstudio/rstudio

RStudio multiple error pages and slow performance when loading .Rproj from network drive on Mac

opened 06:30PM - 23 Oct 20 UTC

closed 04:51PM - 17 Feb 21 UTC

baderstine

bug projects

### System details RStudio Edition : Desktop RStudio Version : 1.3.9…59 OS Version : OS X 10.15.7 (19H2) R Version : 3.6.3 ### Steps to reproduce the problem 1. Map a network drive (e.g., /Volumes/somedrive 2. create an R project and save it (e.g., /Volumes/somedrive/myproj.Rproj) 3. save and close 4. open .Rproj file in RStudio ### Describe the problem in detail When RStudio opens the network drive .Rproj file, the following screen is displayed every time: ``` Cannot Connect to R RStudio can't establish a connection to R. This usually indicates one of the following: The R session is taking an unusually long time to start, perhaps because of slow operations in startup scripts or slow network drive access. RStudio is unable to communicate with R over a local network port, possibly because of firewall restrictions or anti-virus software. Please try the following: If you've customized R session creation by creating an R profile (e.g. located at ~/.Rprofile), consider temporarily removing it. If you are using a firewall or antivirus software which guards access to local network ports, add an exclusion for the RStudio and rsession executables. Run RGui, R.app, or R in a terminal to ensure that R itself starts up correctly. Further troubleshooting help can be found on our website: Troubleshooting RStudio Startup ``` Click the Retry button and the project loads normally. If you then have some files in the project - e.g., create test.R with minimal content - then save and close. Re-open the project. Now you get the "Cannot Connect to R" screen. After hitting Retry, you get a new error screen : ``` This site can’t be reached 127.0.0.1 refused to connect. Try: Checking the connection Checking the proxy and the firewall ERR_CONNECTION_REFUSED ``` Click the "Reload" button on this page and your project loads. However, some features are quite slow, in particular, the tab completion of data.frame column names. e.g., typing `mtcars$` and then <tab> to display the list of column_names, this takes a several seconds rather than being immediate. I have my code completions set to Manually (Tab) in my Global options. ### Describe the behavior you expected No error on project load. Fast completion of column_names when using Manual (Tab) completions. - [x] I have read the guide for [submitting good bug reports](https://github.com/rstudio/rstudio/wiki/Writing-Good-Bug-Reports). - [x] I have installed the latest version of RStudio, and confirmed that the issue still persists. - [x] If I am reporting a RStudio crash, I have included a [diagnostics report](https://support.rstudio.com/hc/en-us/articles/200321257-Running-a-Diagnostics-Report). - [x] I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.

Have you tried disabling anti-virus? See the details here:

github.com/rstudio/rstudio

routinely get this message Error: Unable to establish connection with R session

opened 03:13PM - 04 May 20 UTC

closed 09:32AM - 19 Feb 21 UTC

adprov81

bug windows stale

### System details RStudio Edition : RStudio Desktop 1.2.5042 for Windows… 10 R Version : R version 3.6.3 (2020-02-29) -- "Holding the Windsock" Platform: x86_64-w64-mingw32/x64 (64-bit) ### Describe the problem in detail I'm a longtime RStudio user. About a month ago, I started to routinely get this message while working in RStudio: Error: Unable to establish connection with R session It shows up consistently, no matter what I do and no matter which files I am using. It occurs whether my working directory is linked to Dropbox or whether it is on my Desktop. The problem does not occur with base R, only with RStudio I've looked on the community boards and have tried the following things: 1. Uninstalling and reinstalling Rstudio 2. Changing the software rending to "Software" 3. Resetting Rstudio 4. Remove start-up files.Rdata , .Rprofile and .Rhistory and Rprofile.site Issue seems very similar to the one described here: https://community.rstudio.com/t/rstudio-error-unable-to-establish-connection-with-r-session/58759 ### Reproducing the issue The issue ALWAYS happens within 20 seconds after I open RStudio. There is no pattern to the line of code that produces it or anything like that.  X] I have installed the latest version of RStudio and confirmed that the issue still persists. - [ ] If I am reporting a RStudio crash, I have included a diagnostics report. https://support.rstudio.com/hc/en-us/articles/200321257-Running-a-Diagnostics-Report - [X ] I have done my best to include a minimal, self-contained set of instructions for consistently reproducing the issue.

system · January 25, 2021, 5:10pm

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